updateState method
Updates the shared state for a specific type across displays.
Parameters:
type: The identifier for the state type to updatestate: A map containing the new state data. Can be null to clear the state.
Platform implementations should ensure this state is accessible across all active displays.
Implementation
Future<void> updateState(String type, Map<String, dynamic>? state) {
throw UnimplementedError('updateState() has not been implemented.');
}