Autoformatting

[benjamin-kirkbride]

How do people feel about implementing (and enforcing) autoformatting in Arcade? Specifically:

• Black for code (120 char line length)
• Ruff for imports

Some considerations:

• we would likely need to disable this for sphinx purposes on some files
• git blame can be preserved (inconveniently) using this: https://black.readthedocs.io/en/stable/guides/introducing_black_to_your_project.html#avoiding-ruining-git-blame