Fix UserNameDialog open error and add defensive ref check

- Added ref="userNameDialog" to UserNameDialog in AccountViewView.vue template
- Patched onEditName() to check for dialog ref and open() method before calling
- Improved error notification to use NotificationIface fields (group, type, title, text)
- Prevents "Cannot read properties of undefined (reading 'open')" error if dialog is missing

src/services/ProfileService.ts

@@ -221,4 +221,3 @@ export function createProfileService(
 ): ProfileService {
   return new ProfileService(axios, partnerApiServer);
 }
-