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.
Rather than defining a new enum, tie ModuleType to ModuleHandler names
from PassepartoutKit.
Also a way to reuse ModuleType.localizedDescription on both Module and
ModuleBuilder implementations.
Davide