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/src/lib/components/album-page/album-viewer.svelte

@@ -21,6 +21,7 @@
   import ImmichLogoSmallLink from '../shared-components/immich-logo-small-link.svelte';
   import ThemeButton from '../shared-components/theme-button.svelte';
   import AlbumSummary from './album-summary.svelte';
+  import CastButton from '$lib/cast/cast-button.svelte';
 
   interface Props {
     sharedLink: SharedLinkResponseDto;
@@ -103,6 +104,8 @@
       {/snippet}
 
       {#snippet trailing()}
+        <CastButton whiteHover />
+
         {#if sharedLink.allowUpload}
           <CircleIconButton
             title={$t('add_photos')}