cancelAllScheduledNotifications method

Implementation

@override
Future<bool> cancelAllScheduledNotifications() async {
  try {
    final result = await methodChannel.invokeMethod<bool>('cancelAllScheduledNotifications');
    return result ?? false;
  } on PlatformException catch (e) {
    debugPrint('Error canceling all scheduled notifications: ${e.message}');
    return false;
  }
}