added toDo

components/PwaManager.tsx

@@ -7,6 +7,7 @@ import ProtectedRoute from './protectedRoute';
 import { UserRole } from '@prisma/client';
 
 function PwaManager() {
+    //ToDo: for iOS, try to use apn? https://github.com/node-apn/node-apn/blob/master/doc/apn.markdown
     const isSupported = () =>
         'Notification' in window &&
         'serviceWorker' in navigator &&