Discovery widget, CarPlay prep & podcast progress

• Discovery widget on the Home Screen now refreshes reliably
• CarPlay works even before opening Mobile MA, including album artwork
• Mark podcast episodes as played or reset progress straight from the episode list
• Listen Later is now a polished tab in Favorites with covers and pull-to-refresh
• Auto-reconnect after network handoffs or returning the app to the foreground
• Long-press a track to start playback from that point
• Detail views now tint their backgrounds with the cover’s dominant colour
• Various fixes for widget, CarPlay and Dynamic Island