MM-36687 CRT push notifications (#18347)

* CRT changes

* Lint fix

* Moved postId check

* Moved postId check

* Lint fix

* Misc

* Added test case for badge count while clearing notifications

* Fixed count when CRT is on and added isCRTEnabled, teamId to isIdLoaded notifications

* test fix

* isCRTEnabledForUser capitalised

Co-authored-by: Mattermod <mattermod@users.noreply.github.com>

app/user.go

@@ -2301,7 +2301,7 @@ func (a *App) UpdateThreadFollowForUser(userID, teamID, threadID string, state b
 	return nil
 }
 
-func (a *App) UpdateThreadReadForUser(userID, teamID, threadID string, timestamp int64) (*model.ThreadResponse, *model.AppError) {
+func (a *App) UpdateThreadReadForUser(currentSessionId, userID, teamID, threadID string, timestamp int64) (*model.ThreadResponse, *model.AppError) {
 	user, err := a.GetUser(userID)
 	if err != nil {
 		return nil, err
@@ -2339,6 +2339,11 @@ func (a *App) UpdateThreadReadForUser(userID, teamID, threadID string, timestamp
 		return nil, err
 	}
 
+	// Clear if user has read the messages
+	if thread.UnreadReplies == 0 && a.IsCRTEnabledForUser(userID) {
+		a.clearPushNotification(currentSessionId, userID, post.ChannelId, threadID)
+	}
+
 	message := model.NewWebSocketEvent(model.WebsocketEventThreadReadChanged, teamID, "", userID, nil)
 	message.Add("thread_id", threadID)
 	message.Add("timestamp", timestamp)