chore: add api extractor configuration and fix some associated problems (#6388)

* chore: add configuration for api extractor

* fix: remove extra param names

* chore: private to internal

* remove unrestricted

* chore: remove double backticks

* chore: remove fileoverview and export * as

* chore: return to returns

* chore: fix backslashes and angle brackets in tsdoc

* chore: final to sealed

* chore: ignore to internal

* chore: fix link tags

* chore: add api-extractor configuration

* chore: add unrecognized tag names

* chore: remove tsdoc-metadata

* fix: correct index.d.ts

* chore: fix connection link

package.json

@@ -70,6 +70,7 @@
     "@blockly/dev-tools": "^4.0.2",
     "@blockly/theme-modern": "^2.1.1",
     "@hyperjump/json-schema": "^0.18.4",
+    "@microsoft/api-extractor": "^7.29.5",
     "@typescript-eslint/eslint-plugin": "^5.33.1",
     "@wdio/selenium-standalone-service": "^7.10.1",
     "chai": "^4.2.0",