feat: release 1.4.x

Author: TorstenDittmann

docs/examples/assistant/chat.md

@@ -28,12 +28,9 @@ part 'role.dart';
 part 'id.dart';
 part 'services/account.dart';
 part 'services/avatars.dart';
-part 'services/assistant.dart';
 part 'services/databases.dart';
 part 'services/functions.dart';
 part 'services/graphql.dart';
 part 'services/locale.dart';
-part 'services/migrations.dart';
 part 'services/storage.dart';
 part 'services/teams.dart';
-part 'services/vcs.dart';