Fix incorrect access of `unread_inbox_count` in `notification_data`

app/models/user/push_notification_methods.rb

@@ -19,7 +19,7 @@ module User::PushNotificationMethods
 
   def notification_data = {
     data: {
-      badge: current_user.unread_inbox_count,
+      badge: unread_inbox_count,
     },
   }
 end

spec/workers/question_worker_spec.rb

@@ -78,7 +78,7 @@ describe QuestionWorker do
           user:         receiver,
           subscription: {
             endpoint: "This will not be used",
-            keys:     {}
+            keys:     {},
           }
         )
         receiver.follow(user)