chore: Fix push message tag error (#1768)

app/models/notification.rb

@@ -80,6 +80,12 @@ class Notification < ApplicationRecord
   end
   # rubocop:enable Metrics/CyclomaticComplexity
 
+  def conversation
+    return primary_actor.conversation if ['conversation_mention'].include? notification_type
+
+    primary_actor
+  end
+
   private
 
   def process_notification_delivery

app/services/notification/push_notification_service.rb

@@ -26,7 +26,7 @@ class Notification::PushNotificationService
   end
 
   def conversation
-    @conversation ||= notification.primary_actor
+    @conversation ||= notification.conversation
   end
 
   def push_message