update username in table when changing

lib/src/users/users_bloc.dart

@@ -339,6 +339,8 @@ class UsersBloc extends Bloc<UsersEvent, UsersState> {
     ).then((Response response) {
       _log.finer(formatResponse(response));
       if (response.statusCode == 205) {
+        _users[_users.indexWhere((User user) => user.id == userId)] =
+            _users[_users.indexWhere((User user) => user.id == userId)].copyWith(name: name);
         return;
       } else {
         throw NetworkException('status code other than 205 received', response.statusCode);