feat(web): add support for casting (#18231)

* recreate #13966

* gcast button works

* rewrote gcast-player to be GCastDestination and CastManager manages the interface between UI and casting destinations

* remove unneeded imports

* add "Connected to" translation

* Remove css for cast launcher

* fix tests

* fix doc tests

* fix the receiver application ID

* remove casting app ID

* remove cast button from nav bar

It is now present at the following locations:

- shared link album and single asset views
- asset viewer (normal user)
- album view (normal user)

* part 1 of fixes from @danieldietzler code review

* part 2 of code review changes from @danieldietzler and @jsram91

* cleanup documentation

* onVideoStarted missing callback

* add token expiry validation

* cleanup logic and logging

* small cleanup

* rename to ICastDestination

* cast button changes

web/svelte.config.js

@@ -23,6 +23,7 @@ const config = {
       '$lib/*': 'src/lib/*',
       '@test-data': 'src/test-data',
       $i18n: '../i18n',
+      'chromecast-caf-sender': './node_modules/@types/chromecast-caf-sender/index.d.ts',
     },
   },
 };