administration ui: Reset loading state in finally block

* Previously, the loading state was only reset upon successful completion of the user action. If an error occurred, such as a 403, the UI incorrectly remained in a "loading" state, leaving the button disabled and showing a loading indicator indefinitely. This change ensures that the loading state is reset under all circumstances by moving the setState call to a finally block.
* Removed the line resetting the loading state from the try block.
* Added a finally block to reset the loading state whether the promise is resolved or rejected.

invenio_app_rdm/theme/assets/semantic-ui/js/invenio_app_rdm/administration/users/UserActions.js

@@ -1,6 +1,7 @@
 /*
  * This file is part of Invenio.
  * Copyright (C) 2022 CERN.
+ * Copyright (C) 2024 KTH Royal Institute of Technology.
  *
  * Invenio is free software; you can redistribute it and/or modify it
  * under the terms of the MIT License; see LICENSE file for more details.
@@ -84,14 +85,15 @@ export class UserActions extends Component {
       try {
         await this.cancellableAction.promise;
         addNotification(successNotification);
-        this.setState({ loading: false });
         successCallback();
       } catch (e) {
         addNotification({
           title: i18next.t("Error"),
           content: e.toString(),
           type: "error",
         });
+      } finally {
+        this.setState({ loading: false });
       }
     }
   };