Fix .eslintrc (codesandbox#1993)

Author: MichaelDeBoey

.eslintrc

@@ -45,40 +45,42 @@
     "react-hooks/rules-of-hooks": "error",
     "react-hooks/exhaustive-deps": "warn"
   },
-  "overrides": {
-    "files": ["**/*.ts", "**/*.tsx"],
-    "parser": "@typescript-eslint/parser",
-    "parserOptions": {
-      "ecmaVersion": 2018,
-      "sourceType": "module",
-      "ecmaFeatures": { "jsx": true },
-      "warnOnUnsupportedTypeScriptVersion": true
-    },
-    "plugins": ["@typescript-eslint"],
-    "rules": {
-      "default-case": "off",
-      "no-dupe-class-members": "off",
-      "@typescript-eslint/no-angle-bracket-type-assertion": "warn",
-      "no-array-constructor": "off",
-      "@typescript-eslint/no-array-constructor": "warn",
-      "@typescript-eslint/no-namespace": "error",
-      "no-use-before-define": "off",
-      "@typescript-eslint/no-use-before-define": [
-        "warn",
-        {
-          "functions": false,
-          "classes": false,
-          "variables": false,
-          "typedefs": false
-        }
-      ],
-      "no-unused-vars": "off",
-      "@typescript-eslint/no-unused-vars": [
-        "warn",
-        { "args": "none", "ignoreRestSiblings": true }
-      ],
-      "no-useless-constructor": "off",
-      "@typescript-eslint/no-useless-constructor": "warn"
+  "overrides": [
+    {
+      "files": ["**/*.ts", "**/*.tsx"],
+      "parser": "@typescript-eslint/parser",
+      "parserOptions": {
+        "ecmaVersion": 2018,
+        "sourceType": "module",
+        "ecmaFeatures": { "jsx": true },
+        "warnOnUnsupportedTypeScriptVersion": true
+      },
+      "plugins": ["@typescript-eslint"],
+      "rules": {
+        "default-case": "off",
+        "no-dupe-class-members": "off",
+        "@typescript-eslint/no-angle-bracket-type-assertion": "warn",
+        "no-array-constructor": "off",
+        "@typescript-eslint/no-array-constructor": "warn",
+        "@typescript-eslint/no-namespace": "error",
+        "no-use-before-define": "off",
+        "@typescript-eslint/no-use-before-define": [
+          "warn",
+          {
+            "functions": false,
+            "classes": false,
+            "variables": false,
+            "typedefs": false
+          }
+        ],
+        "no-unused-vars": "off",
+        "@typescript-eslint/no-unused-vars": [
+          "warn",
+          { "args": "none", "ignoreRestSiblings": true }
+        ],
+        "no-useless-constructor": "off",
+        "@typescript-eslint/no-useless-constructor": "warn"
+      }
     }
-  }
+  ]
 }