Remove browser-features, optimizely, ecommerce and consent plugins, deprecate enhanced ecommerce and performance timing plugins and add web vitals by default

[Matus Tomlein (matus-tomlein)]

This PR revises the plugins in the v4 release. The goals are:

1. Make it more straightforward for customers to choose the correct plugins (so they don't have to choose from 3 ecommerce plugins and steer towards the ones supported by our dbt packages)
2. Remove old plugins that build on deprecated APIs (e.g., optimizely)

Below is the list of changes. This is still open for discussion if you have a different opinion!

Removed plugins

• browser-features
  • has already been deprecated in v3
• optimizely
  • builds on deprecated optimizely APIs
• ecommerce
  • we don't support it in our dbt packages, superseded by snowplow-ecommerce
• consent
  • superseded by enhanced-consent, not sure if there is value in just deprecating?

Deprecated plugins

• enhanced ecommerce
  • I thought that since this one reflect's the GA Enhanced Ecommerce, it's worth keeping it, but happy to remove as well
• performance timing
  • was considering removing this but it is currently the most downloaded plugin on NPM and although most of the APIs it builds on are deprecated, not all

Added default plugins in sp.js

• web vitals (needs configuration to be enabled)

Removed default plugins in sp.js

• optimizely-x
• timezone

Other changes

• Add an option to enable performance navigation timing

[bundlemon]

BundleMon

Files added (6)

Status	Path	Size	Limits
✅	trackers/javascript-tracker/dist/sp.js	+23.86KB	30KB / +10%
✅	libraries/browser-tracker-core/dist/index.mod ule.js	+22.49KB	25KB / +10%
✅	libraries/tracker-core/dist/index.module.js	+19.12KB	20KB / +10%
✅	trackers/browser-tracker/dist/index.umd.min.j s	+16.87KB	20KB / +10%
✅	trackers/javascript-tracker/dist/sp.lite.js	+16.83KB	20KB / +10%
✅	trackers/browser-tracker/dist/index.module.js	+3.49KB	5KB / +10%

Total files change +102.66KB 0%

Final result: ✅

View report in BundleMon website ➡️

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Current branch size history

[Peter Perlepes (igneel64)]

🚀

[Jethro Nederhof (jethron)]

I would prefer consent and ecommerce stick around as deprecated while they're still "not deprecated" and first-class (or the only built-in option) in other platform's trackers. But not a hill I'd die on.

[Jethro Nederhof (jethron)]

LGTM!