refactor AUTHORS.py

[dotysan]

So I made some minor changes including adding my gh user. dotysan@b2dee62

But then got carried away and refactored the entire thing! dotysan@a1d881d

@WyattBlue Your thoughts? Some of the docstrings and other stuff is from my opinionated ruff.toml style. So happy to further refactor in yours.

LMK, which is better and I'll create a PR.

[WyattBlue]

I think yours is an improvement

[dotysan]

OK great. Here you go. #2043