Leak

* Add `--all` flag to show all versions available
* Add paginator if list of results is too long
* Adjust size of both panels
* Highlight homapage and email links

* Drop support for Python 3.6
* Use nice terminal UI for the output
* Add missing [packaging](https://github.com/pypa/packaging) library to the dependencies

* Migrate to click for the arguments parsing
* Integrate with GitHub Actions for CI
* Move configuration to a separate module
* Enable internal logging only in debug mode

* Use [rich library](https://rich.readthedocs.io/en/latest/) for the colored output
* Migrate to [Poetry](https://python-poetry.org/) for a package management
* Use [Markdown](https://www.markdownguide.org/basic-syntax/) for documentation files
* Apply formatting with [black](https://black.readthedocs.io/en/stable/index.html)