[Gekidou MM-44135 MM-44134 MM-40088] Group & Clear channel and thread notifications when CRT is on (#6429)

* Android

* iOS changes

* client changes

* Misc

* Update CustomPushNotification.java

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

types/global/push_notifications.d.ts

@@ -49,4 +49,5 @@ interface NotificationWithData extends Notification {
 
 declare class NotificationWithChannel extends Notification {
     channel_id?: string;
+    root_id?: string;
 }