Run type check for all web app packages in CI (#22578)

* Fix incorrect usage of types pacakge

* Make platform packages properly expose their type definitions

* Have Boards, Channels, and Playbooks get types from platform packages properly

* Run type check for all web app packages in CI

* Fix incorrect job name

webapp/platform/components/package.json

@@ -2,7 +2,7 @@
   "name": "@mattermost/components",
   "version": "7.4.0",
   "module": "dist/index.esm.js",
-  "types": "dist/index.esm.d.ts",
+  "types": "dist/index.d.ts",
   "styles": "dist/index.esm.css",
   "scripts": {
     "build": "rollup -c",