android media v3 support

media notification

update app to use android media v3 framework:
https://chatgpt.com/c/7e545879-3f29-4411-b417-24c9bb23726b
https://developer.android.com/media/routing
https://developer.android.com/media/media3

- [ ] bug: skip buttons don't show in notification
- [ ] evaluate work needed - might be quite long - might need advice if possible.