installation: update to use hatch following change in backend and other frontends: - `setup.py` and `requirements.txt` have been removed in favor of `pyproject.toml` - changed versionning mechanism to use a version directly in `libervia/desktop_kivy/__init__.py` handled by Hatch - remove the log hack from `kivy_hack` as there is now an environment variable to disable the logging hijacking

^*media/
^*android/
^*libs/
^*bin/
^*service/