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
Define two styles for interactive login:
- Modal (iOS/macOS) - Form inside NavigationStack
- Inline (tvOS) - VStack
Requires OpenVPN credentials view to be container-agnostic.
Play with focus to improve the overall TV experience.