feat: standardize format and lints for various filetypes

[zimeg]

👁️‍🗨️ Conventions on indentation and ending new lines aren't consistent across and sometimes within a project. This issue hopes to discuss tooling we might use to improve this!

We might find this useful to avoid extraneous changes from appearing in PRs due to editor configurations.

Proposal

• .editorconfig: https://editorconfig.org. An editor independent and configured formatter. Seems useful to guarantee lines end as expected and that indentation of bash files (for example) matches. IMHO language specific formatters should still be preferred when available - biome or ruff?
  • Editor support seems solid: VSCode has an extension and neovim includes this as a default.
  • Running in CI seems possible: https://github.com/editorconfig-checker/action-editorconfig-checker

To start I think a small set of checks can be useful:

[*]
end_of_line = lf
insert_final_newline = true

[*.json]
indent_style = space
indent_size = 2

[*.sh]
indent_style = space
indent_size = 4

[WilliamBergamin]

A while ago I looked at https://editorconfig.org/ for a similar purpose, it seems like its gained in popularity and stability since then.

This seems like great tool and path forward for this issue 💯 the Github action will make it simple for us to make this work across our projects