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/shared-components/navigation-bar/navigation-bar.svelte

@@ -27,6 +27,7 @@
   import ThemeButton from '../theme-button.svelte';
   import UserAvatar from '../user-avatar.svelte';
   import AccountInfoPanel from './account-info-panel.svelte';
+  import CastButton from '$lib/cast/cast-button.svelte';
 
   interface Props {
     showUploadButton?: boolean;
@@ -162,6 +163,8 @@
           {/if}
         </div>
 
+        <CastButton navBar />
+
         <div
           use:clickOutside={{
             onOutclick: () => (shouldShowAccountInfoPanel = false),