Add platform information for push notification metrics (#27460)

* Add platform information for push notification metrics

* Address feedback

* Add the client platform returned by the devices to the normalize function

* Add "no platform" platform label to distinguish from unknown

server/channels/app/reaction.go

@@ -67,7 +67,7 @@ func (a *App) SaveReactionForPost(c request.CTX, reaction *model.Reaction) (*mod
 
 	if post.RootId == "" {
 		if appErr := a.ResolvePersistentNotification(c, post, reaction.UserId); appErr != nil {
-			a.CountNotificationReason(model.NotificationStatusError, model.NotificationTypeAll, model.NotificationReasonResolvePersistentNotificationError)
+			a.CountNotificationReason(model.NotificationStatusError, model.NotificationTypeAll, model.NotificationReasonResolvePersistentNotificationError, model.NotificationNoPlatform)
 			a.NotificationsLog().Error("Error resolving persistent notification",
 				mlog.String("sender_id", reaction.UserId),
 				mlog.String("post_id", post.RootId),