New Update !

[YBTopaz8]

PR Classification

Enhancement and bug fix to improve exception handling, UI responsiveness, and playback functionality.

PR Summary

This pull request introduces enhanced exception handling, UI updates, and playback improvements.

• App.xaml.cs: Added handling for unhandled exceptions and app activation events.
• AppShell.xaml & AppShell.xaml.cs: Added x:Name attributes and event handlers for Loaded and Unloaded events.
• PlaybackUtilsService.cs: Implemented ObservableObject, added debug statements, and refactored playback methods.
• HomePageVM.cs: Updated to handle player state changes and UI updates.
• `MouseBtm4`` now makes the app nav back.
• App no longer closes when pressing back btn in main shell page, but will either switch to shell page or do nothing.