[MM-55152] Add new Desktop API endpoints, improve preload script, some clean-up (#2900)

* Add constants for app info, add to API

* Migrate history button

* Converted calls API over to context bridge, removed some unnecessary logging

* Convert to TS, add types for web app to consume

* Fix tests, prune

* Fix lint

* More changes to support the legacy API

* Force legacy code off, add support for unreads/mentions/expired through the API

* Fix issues with cross-tab login, removed need for log in/log out signalling

* Fixed test, typos

* Change package name for types

* Add some other stuff to the types

* PR feedback

* More feedback

* Use npm package

* Change types and API to provide off listeners

* Version number

* Lock

* Fix typo

* Add sessionID for calls

package.json

@@ -145,6 +145,7 @@
     "@electron/fuses": "1.6.0",
     "@electron/universal": "1.3.1",
     "@mattermost/compass-icons": "0.1.32",
+    "@mattermost/desktop-api": "*",
     "@storybook/addon-actions": "6.4.20",
     "@storybook/react": "6.4.20",
     "@types/auto-launch": "5.0.2",