disableNotifications static method
Disables push notifications for the end user. No-op if initialize()
hasn't run yet, mirroring enableNotifications().
Implementation
static Future<void> disableNotifications() async {
final String? appId = _appId;
if (appId == null) return;
await FirebaseMessaging.instance.unsubscribeFromTopic(
adhubFcmBroadcastTopic,
);
await FirebaseMessaging.instance.unsubscribeFromTopic(
_adhubFcmAppTopic(appId),
);
}