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.
Start with the profile tab. Left to do: search and settings.
Fixes and refactoring:
- Listen to changes in current profile in ExtendedTunnel
- Externalize style from TunnelToggleButton and ConnectionStatusText
(renamed from View)
- Add ThemeCountryText for convenience
