Fix: Improves Chromecast casting experience

Fixes several issues and enhances the Chromecast casting experience:

- Prevents errors when loading media by slimming down the customData payload to avoid exceeding message size limits.
- Improves logic for selecting custom data from media status.
- Fixes an issue with subtitle track selection.
- Recommends stereo audio tracks for better Chromecast compatibility.
- Improves volume control and mute synchronization between the app and the Chromecast device.
- Adds error handling for `loadMedia` in `PlayButton`.
- Fixes image caching issue for season posters in mini player.
- Implements cleanup for scroll retry timeout in episode list.
- Ensures segment skipping functions are asynchronous.
- Resets `hasReportedStartRef` after stopping casting.
- Prevents seeking past the end of Outro segments.
- Reports playback progress more accurately by also taking player state changes into account.

hooks/useCasting.ts

@@ -307,6 +307,7 @@ export const useCasting = (item: BaseItemDto | null) => {
       } catch (error) {
         console.error("[useCasting] Error during stop:", error);
       } finally {
+        hasReportedStartRef.current = null;
         setState(DEFAULT_CAST_STATE);
         stateRef.current = DEFAULT_CAST_STATE;