* [issue-516] Add API to delete consumer groups by IDs
* Add more tests to check consumer groups deletions
* Refactor and fix code style
* Fix codestyle
* Rethrow OperationInterruptedException with 500 error code if a thread is interrupted
* Use SneakyTrhrows to handle InterruptedException. Refactor
* Change deletion of groups API to single group delete
* Fix codestyle
* Rollback changes in kafka-ui-react-app/package-lock.json