adding a note about language setter in successful login event

src/app/Listeners/SuccessfulLogin.php

@@ -29,6 +29,10 @@ class SuccessfulLogin
     public function handle(Login $event): void
     {
         Session::put('timezone_name', $event->user->timezone_name);
+
+        // TODO: this may need to be reworked so that the language is stored
+        //       in a cookie and attempted to be retrieved from there
+        //       first before pulling from the database.
         Session::put('language', $event->user->language->locale);
 
         // Optionally log the info