Minor Release: v0.1.2

[ma-sadeghi]

• Major refactoring of the streamlit app to work with the latest version
• Minor refactoring of docstrings to be compatible with numpydoc style
• Minor refactoring of the documentation
• Updated the BEaTmap webapp, currently available at https: https://share.streamlit.io/pmeal/beatmap/main
• Added a new Action to generate the documentation and publish it at https://pmeal.github.io/beatmap/
• Unified all CI workflows into a single Action
• Dropped support for Python 3.6/3.7
• Refactored internal assumption checks under beatmap.core to be more descriptive
• Fixed a unit test that tried to catch an Exception that didn't exist

---

This discussion was created from the release v0.1.2.