fix: Request notification permission on android

lib/utils/background_push.dart

@@ -139,6 +139,11 @@ class BackgroundPush {
   }) async {
     if (PlatformInfos.isIOS) {
       await firebase?.requestPermission();
+    } else if (PlatformInfos.isAndroid) {
+      _flutterLocalNotificationsPlugin
+          .resolvePlatformSpecificImplementation<
+              AndroidFlutterLocalNotificationsPlugin>()
+          ?.requestNotificationsPermission();
     }
     final clientName = PlatformInfos.clientName;
     oldTokens ??= <String>{};

lib/utils/push_helper.dart

@@ -61,6 +61,7 @@ Future<void> pushHelper(
           ticker: l10n.unreadChats(notification.counts?.unread ?? 1),
           importance: Importance.max,
           priority: Priority.max,
+          shortcutId: notification.roomId,
           fullScreenIntent: true, // To show notification popup
         ),
       ),
@@ -233,6 +234,7 @@ Future<void> _tryPushHelper(
     channelDescription: groupName,
     number: notification.counts?.unread,
     category: AndroidNotificationCategory.message,
+    shortcutId: event.room.id,
     styleInformation: messagingStyleInformation ??
         MessagingStyleInformation(
           person,