use session index in arguments to render view

src/Application/Actions/User/ListUsersAction.php

@@ -21,6 +21,6 @@ class ListUsersAction extends UserAction
 
         $this->logger->info("Users list was viewed.");
 
-        return $this->twig->render($this->response, "/user/list_users.twig", ["users" => $users]);
+        return $this->twig->render($this->response, "/user/list_users.twig", ["users" => $users, "session" => $this->request->session]);
     }
 }