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

syntax: glob
*.pyc
*.pyo
*.pyv
*.swp
*.swo
tags
*.un~
Session.vim