Co-authored-by: Saransh Saini <saranshsaini@google.com>

* Basic reactive

* instructions reactive

* trajectory fix

…e#223)

…pe (google#226)

* feat(a11y): santa button should accept aria-expanded

* feat(a11y): update label and expanded for santa buttons

* fix(msg): update messages

Bumps the npm_and_yarn group with 37 updates:

| Package | From | To |
| --- | --- | --- |
| [dat.gui](https://github.com/dataarts/dat.gui) | `0.7.3` | `0.7.8` |
| [google-closure-library](https://github.com/google/closure-library) | `v20190909.0.0` | `20200315.0.0` |
| [jsdom](https://github.com/jsdom/jsdom) | `12.2.0` | `16.5.0` |
| [json5](https://github.com/json5/json5) | `2.1.0` | `2.2.2` |
| [terser](https://github.com/terser/terser) | `3.10.11` | `4.8.1` |
| [semver](https://github.com/npm/node-semver) | `5.5.1` | `5.7.2` |
| [@babel/traverse](https://github.com/babel/babel/tree/HEAD/packages/babel-traverse) | `7.6.0` | `7.24.7` |
| [@grpc/grpc-js](https://github.com/grpc/grpc-node) | `1.4.2` | `1.10.10` |
| [@google-cloud/cloudbuild](https://github.com/googleapis/google-cloud-node/tree/HEAD/packages/google-devtools-cloudbuild) | `2.6.0` | `4.5.0` |
| [y18n](https://github.com/yargs/y18n) | `4.0.0` | `4.0.3` |
| [yargs-parser](https://github.com/yargs/yargs-parser) | `10.1.0` | `21.1.1` |
| [yargs](https://github.com/yargs/yargs) | `12.0.2` | `17.7.2` |
| [acorn](https://github.com/acornjs/acorn) | `5.7.3` | `8.12.0` |
| [acorn](https://github.com/acornjs/acorn) | `7.1.0` | `8.12.0` |
| [acorn](https://github.com/acornjs/acorn) | `6.0.2` | `8.12.0` |
| [ajv](https://github.com/ajv-validator/ajv) | `5.5.2` | `6.12.6` |
| [browserslist](https://github.com/browserslist/browserslist) | `4.3.2` | `4.7.0` |
| [braces](https://github.com/micromatch/braces) | `3.0.2` | `3.0.3` |
| [node-fetch](https://github.com/node-fetch/node-fetch) | `2.6.6` | `2.6.7` |
| [firebase](https://github.com/firebase/firebase-js-sdk) | `8.10.0` | `8.10.1` |
| [get-func-name](https://github.com/chaijs/get-func-name) | `2.0.0` | `2.0.2` |
| [glob-parent](https://github.com/gulpjs/glob-parent) | `5.0.0` | `5.1.2` |
| [tough-cookie](https://github.com/salesforce/tough-cookie) | `2.4.3` | `2.5.0` |
| [ws](https://github.com/websockets/ws) | `6.2.1` | `6.2.3` |
| [json-schema](https://github.com/kriszyp/json-schema) | `0.2.3` | `0.4.0` |
| [jsprim](https://github.com/joyent/node-jsprim) | `1.4.1` | `1.4.2` |
| [lodash](https://github.com/lodash/lodash) | `4.17.20` | `4.17.21` |
| [minimatch](https://github.com/isaacs/minimatch) | `3.0.4` | `3.1.2` |
| [mocha](https://github.com/mochajs/mocha) | `5.2.0` | `10.5.2` |
| [mocha-headless-server](https://github.com/samthor/mocha-headless-server) | `0.1.2` | `0.1.4` |
| [node-forge](https://github.com/digitalbazaar/forge) | `0.10.0` | `1.3.1` |
| [google-p12-pem](https://github.com/googleapis/google-p12-pem) | `3.1.2` | `3.1.4` |
| [path-parse](https://github.com/jbgutierrez/path-parse) | `1.0.6` | `1.0.7` |
| [pathval](https://github.com/chaijs/pathval) | `1.1.0` | `1.1.1` |
| [protobufjs](https://github.com/protobufjs/protobuf.js) | `6.11.2` | `6.11.4` |
| [qs](https://github.com/ljharb/qs) | `6.5.2` | `6.5.3` |
| [request](https://github.com/request/request) | `2.88.0` | `2.88.2` |


Updates `dat.gui` from 0.7.3 to 0.7.8
- [Release notes](https://github.com/dataarts/dat.gui/releases)
- [Commits](dataarts/dat.gui@v0.7.3...v0.7.8)

Updates `google-closure-library` from v20190909.0.0 to 20200315.0.0
- [Release notes](https://github.com/google/closure-library/releases)
- [Commits](google/closure-library@v20190909...v20200315)

Updates `jsdom` from 12.2.0 to 16.5.0
- [Release notes](https://github.com/jsdom/jsdom/releases)
- [Changelog](https://github.com/jsdom/jsdom/blob/main/Changelog.md)
- [Commits](jsdom/jsdom@12.2.0...16.5.0)

Updates `json5` from 2.1.0 to 2.2.2
- [Release notes](https://github.com/json5/json5/releases)
- [Changelog](https://github.com/json5/json5/blob/main/CHANGELOG.md)
- [Commits](json5/json5@v2.1.0...v2.2.2)

Updates `terser` from 3.10.11 to 4.8.1
- [Changelog](https://github.com/terser/terser/blob/master/CHANGELOG.md)
- [Commits](terser/terser@3.10.11...v4.8.1)

Updates `semver` from 5.5.1 to 5.7.2
- [Release notes](https://github.com/npm/node-semver/releases)
- [Changelog](https://github.com/npm/node-semver/blob/v5.7.2/CHANGELOG.md)
- [Commits](npm/node-semver@v5.5.1...v5.7.2)

Updates `@babel/traverse` from 7.6.0 to 7.24.7
- [Release notes](https://github.com/babel/babel/releases)
- [Changelog](https://github.com/babel/babel/blob/main/CHANGELOG.md)
- [Commits](https://github.com/babel/babel/commits/v7.24.7/packages/babel-traverse)

Updates `@grpc/grpc-js` from 1.4.2 to 1.10.10
- [Release notes](https://github.com/grpc/grpc-node/releases)
- [Commits](https://github.com/grpc/grpc-node/compare/@grpc/grpc-js@1.4.2...@grpc/grpc-js@1.10.10)

Updates `@google-cloud/cloudbuild` from 2.6.0 to 4.5.0
- [Release notes](https://github.com/googleapis/google-cloud-node/releases)
- [Changelog](https://github.com/googleapis/google-cloud-node/blob/main/packages/google-devtools-cloudbuild/CHANGELOG.md)
- [Commits](https://github.com/googleapis/google-cloud-node/commits/kms-v4.5.0/packages/google-devtools-cloudbuild)

Updates `y18n` from 4.0.0 to 4.0.3
- [Release notes](https://github.com/yargs/y18n/releases)
- [Changelog](https://github.com/yargs/y18n/blob/y18n-v4.0.3/CHANGELOG.md)
- [Commits](yargs/y18n@v4.0.0...y18n-v4.0.3)

Updates `yargs-parser` from 10.1.0 to 21.1.1
- [Release notes](https://github.com/yargs/yargs-parser/releases)
- [Changelog](https://github.com/yargs/yargs-parser/blob/main/CHANGELOG.md)
- [Commits](yargs/yargs-parser@v10.1.0...yargs-parser-v21.1.1)

Updates `yargs` from 12.0.2 to 17.7.2
- [Release notes](https://github.com/yargs/yargs/releases)
- [Changelog](https://github.com/yargs/yargs/blob/main/CHANGELOG.md)
- [Commits](yargs/yargs@v12.0.2...v17.7.2)

Updates `acorn` from 5.7.3 to 8.12.0
- [Commits](acornjs/acorn@5.7.3...8.12.0)

Updates `acorn` from 7.1.0 to 8.12.0
- [Commits](acornjs/acorn@5.7.3...8.12.0)

Updates `acorn` from 6.0.2 to 8.12.0
- [Commits](acornjs/acorn@5.7.3...8.12.0)

Updates `ajv` from 5.5.2 to 6.12.6
- [Release notes](https://github.com/ajv-validator/ajv/releases)
- [Commits](ajv-validator/ajv@v5.5.2...v6.12.6)

Updates `browserslist` from 4.3.2 to 4.7.0
- [Release notes](https://github.com/browserslist/browserslist/releases)
- [Changelog](https://github.com/browserslist/browserslist/blob/main/CHANGELOG.md)
- [Commits](browserslist/browserslist@4.3.2...4.7.0)

Updates `braces` from 3.0.2 to 3.0.3
- [Changelog](https://github.com/micromatch/braces/blob/master/CHANGELOG.md)
- [Commits](micromatch/braces@3.0.2...3.0.3)

Updates `node-fetch` from 2.6.6 to 2.6.7
- [Release notes](https://github.com/node-fetch/node-fetch/releases)
- [Commits](node-fetch/node-fetch@v2.6.6...v2.6.7)

Updates `firebase` from 8.10.0 to 8.10.1
- [Release notes](https://github.com/firebase/firebase-js-sdk/releases)
- [Changelog](https://github.com/firebase/firebase-js-sdk/blob/master/CHANGELOG.md)
- [Commits](https://github.com/firebase/firebase-js-sdk/compare/firebase@8.10.0...firebase@8.10.1)

Updates `get-func-name` from 2.0.0 to 2.0.2
- [Release notes](https://github.com/chaijs/get-func-name/releases)
- [Commits](https://github.com/chaijs/get-func-name/commits/v2.0.2)

Updates `glob-parent` from 5.0.0 to 5.1.2
- [Release notes](https://github.com/gulpjs/glob-parent/releases)
- [Changelog](https://github.com/gulpjs/glob-parent/blob/main/CHANGELOG.md)
- [Commits](gulpjs/glob-parent@v5.0.0...v5.1.2)

Updates `tough-cookie` from 2.4.3 to 2.5.0
- [Release notes](https://github.com/salesforce/tough-cookie/releases)
- [Changelog](https://github.com/salesforce/tough-cookie/blob/master/CHANGELOG.md)
- [Commits](salesforce/tough-cookie@v2.4.3...v2.5.0)

Updates `ws` from 6.2.1 to 6.2.3
- [Release notes](https://github.com/websockets/ws/releases)
- [Commits](websockets/ws@6.2.1...6.2.3)

Updates `json-schema` from 0.2.3 to 0.4.0
- [Commits](kriszyp/json-schema@v0.2.3...v0.4.0)

Updates `jsprim` from 1.4.1 to 1.4.2
- [Changelog](https://github.com/TritonDataCenter/node-jsprim/blob/v1.4.2/CHANGES.md)
- [Commits](TritonDataCenter/node-jsprim@v1.4.1...v1.4.2)

Updates `lodash` from 4.17.20 to 4.17.21
- [Release notes](https://github.com/lodash/lodash/releases)
- [Commits](lodash/lodash@4.17.20...4.17.21)

Updates `minimatch` from 3.0.4 to 3.1.2
- [Changelog](https://github.com/isaacs/minimatch/blob/main/changelog.md)
- [Commits](isaacs/minimatch@v3.0.4...v3.1.2)

Updates `mocha` from 5.2.0 to 10.5.2
- [Release notes](https://github.com/mochajs/mocha/releases)
- [Changelog](https://github.com/mochajs/mocha/blob/main/CHANGELOG.md)
- [Commits](mochajs/mocha@v5.2.0...v10.5.2)

Updates `mocha-headless-server` from 0.1.2 to 0.1.4
- [Commits](https://github.com/samthor/mocha-headless-server/commits)

Updates `node-forge` from 0.10.0 to 1.3.1
- [Changelog](https://github.com/digitalbazaar/forge/blob/main/CHANGELOG.md)
- [Commits](digitalbazaar/forge@0.10.0...v1.3.1)

Updates `google-p12-pem` from 3.1.2 to 3.1.4
- [Release notes](https://github.com/googleapis/google-p12-pem/releases)
- [Changelog](https://github.com/googleapis/google-p12-pem/blob/main/CHANGELOG.md)
- [Commits](googleapis/google-p12-pem@v3.1.2...v3.1.4)

Updates `path-parse` from 1.0.6 to 1.0.7
- [Commits](https://github.com/jbgutierrez/path-parse/commits/v1.0.7)

Updates `pathval` from 1.1.0 to 1.1.1
- [Release notes](https://github.com/chaijs/pathval/releases)
- [Changelog](https://github.com/chaijs/pathval/blob/master/CHANGELOG.md)
- [Commits](chaijs/pathval@v1.1.0...v1.1.1)

Updates `protobufjs` from 6.11.2 to 6.11.4
- [Release notes](https://github.com/protobufjs/protobuf.js/releases)
- [Changelog](https://github.com/protobufjs/protobuf.js/blob/master/CHANGELOG.md)
- [Commits](https://github.com/protobufjs/protobuf.js/commits)

Updates `qs` from 6.5.2 to 6.5.3
- [Changelog](https://github.com/ljharb/qs/blob/main/CHANGELOG.md)
- [Commits](ljharb/qs@v6.5.2...v6.5.3)

Updates `request` from 2.88.0 to 2.88.2
- [Changelog](https://github.com/request/request/blob/master/CHANGELOG.md)
- [Commits](https://github.com/request/request/commits)

---
updated-dependencies:
- dependency-name: dat.gui
  dependency-type: direct:production
  dependency-group: npm_and_yarn
- dependency-name: google-closure-library
  dependency-type: direct:production
  dependency-group: npm_and_yarn
- dependency-name: jsdom
  dependency-type: direct:production
  dependency-group: npm_and_yarn
- dependency-name: json5
  dependency-type: direct:production
  dependency-group: npm_and_yarn
- dependency-name: terser
  dependency-type: direct:production
  dependency-group: npm_and_yarn
- dependency-name: semver
  dependency-type: indirect
  dependency-group: npm_and_yarn
- dependency-name: "@babel/traverse"
  dependency-type: indirect
  dependency-group: npm_and_yarn
- dependency-name: "@grpc/grpc-js"
  dependency-type: indirect
  dependency-group: npm_and_yarn
- dependency-name: "@google-cloud/cloudbuild"
  dependency-type: direct:development
  dependency-group: npm_and_yarn
- dependency-name: y18n
  dependency-type: indirect
  dependency-group: npm_and_yarn
- dependency-name: yargs-parser
  dependency-type: indirect
  dependency-group: npm_and_yarn
- dependency-name: yargs
  dependency-type: direct:production
  dependency-group: npm_and_yarn
- dependency-name: acorn
  dependency-type: indirect
  dependency-group: npm_and_yarn
- dependency-name: acorn
  dependency-type: indirect
  dependency-group: npm_and_yarn
- dependency-name: acorn
  dependency-type: indirect
  dependency-group: npm_and_yarn
- dependency-name: ajv
  dependency-type: indirect
  dependency-group: npm_and_yarn
- dependency-name: browserslist
  dependency-type: indirect
  dependency-group: npm_and_yarn
- dependency-name: braces
  dependency-type: indirect
  dependency-group: npm_and_yarn
- dependency-name: node-fetch
  dependency-type: indirect
  dependency-group: npm_and_yarn
- dependency-name: firebase
  dependency-type: direct:production
  dependency-group: npm_and_yarn
- dependency-name: get-func-name
  dependency-type: indirect
  dependency-group: npm_and_yarn
- dependency-name: glob-parent
  dependency-type: indirect
  dependency-group: npm_and_yarn
- dependency-name: tough-cookie
  dependency-type: indirect
  dependency-group: npm_and_yarn
- dependency-name: ws
  dependency-type: indirect
  dependency-group: npm_and_yarn
- dependency-name: json-schema
  dependency-type: indirect
  dependency-group: npm_and_yarn
- dependency-name: jsprim
  dependency-type: indirect
  dependency-group: npm_and_yarn
- dependency-name: lodash
  dependency-type: indirect
  dependency-group: npm_and_yarn
- dependency-name: minimatch
  dependency-type: indirect
  dependency-group: npm_and_yarn
- dependency-name: mocha
  dependency-type: direct:production
  dependency-group: npm_and_yarn
- dependency-name: mocha-headless-server
  dependency-type: direct:production
  dependency-group: npm_and_yarn
- dependency-name: node-forge
  dependency-type: indirect
  dependency-group: npm_and_yarn
- dependency-name: google-p12-pem
  dependency-type: indirect
  dependency-group: npm_and_yarn
- dependency-name: path-parse
  dependency-type: indirect
  dependency-group: npm_and_yarn
- dependency-name: pathval
  dependency-type: indirect
  dependency-group: npm_and_yarn
- dependency-name: protobufjs
  dependency-type: indirect
  dependency-group: npm_and_yarn
- dependency-name: qs
  dependency-type: indirect
  dependency-group: npm_and_yarn
- dependency-name: request
  dependency-type: indirect
  dependency-group: npm_and_yarn
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

* Remove vestigial mocha-headless-server file to fix npm deps

This was previously used for tests when Santa Tracker had a separate API, but now it's no longer used. It depends on a specific version of the the dhost library, which messes with npm dependency resolution

Both are just used for development so don't impact prod builds

* Update some dependencies (npm audit fix)

* Remove vestigial mocha-headless-server file to fix npm deps

This was previously used for tests when Santa Tracker had a separate API, but now it's no longer used. It depends on a specific version of the the dhost library, which messes with npm dependency resolution

Both are just used for development so don't impact prod builds

* Update some dependencies (npm audit fix)

* Add new railroad ride scene

There's a bit of a jump up in filesize, but hopefully it's ok. Definitely could be optimized more (not such in the scene is instanced, I believe).

Re-adds the goog.isDef, goog.isNull, goog.isDefAndNotNull,
goog.isString, goog.isBoolean, goog.isNumber, and goog.isFunction
functions as polyfills under the Blockly.goog namespace.

This change is necessary because these functions were removed from the
Closure Library, but Blockly still relies on them.

All usages of goog.is* in the affected Blockly core files have been updated
to use Blockly.goog.is* instead.

Session summary:
> Find all usages of goog.is(Def|Null|DefAndNotNull|String|Boolean|Number) (regex)
Found 10 matches in 7 files under static/third_party/lib/blockly/core/.

> Those functions were deleted by the library. Create a new file with those functions in that directory, using google/closure-library@9325ce1 as a reference, and then replace all usages in those files with the new definition.
Created a new file static/third_party/lib/blockly/core/goog-polyfill.js with the specified functions and updated 7 files to use the new polyfills.

> That's generally good, but rename the file to goog-polyfill.js
Renamed the file as requested.

> Also make sure the functions are defined in the Blockly namespace
Moved the functions into the `Blockly.goog` namespace and updated the calls in the 7 files.

> Also define isFunction
Added `Blockly.goog.isFunction` to the polyfill file and updated its usage in an additional file, `field_dropdown.js`.

…imney markup. (google#247)

Co-authored-by: Chris Brewer <brewerchris@google.com>