Add profile attribute `isAvailableForTV` and set specific behavior to:
- Observe shared profiles and delete locally when unshared
- Only keep locally those profiles with the TV attribute enabled
- Add toggle in UI
- Move InteractiveView to AppUI for use in TV, with
OpenVPNCredentialsView
- Move non-UI entities to AppLibrary (IAP, ExtendedTunnel,
ProfileProcessor)
- Take API out of CommonLibrary (tunnel extension does not need it)
- Reorganize theme views/modifiers into separate files