chore: Add EditorConfig for whitespace

[nschonni]

Copied from original version in mdn/content and added Python config

[peterbe]

How do I test this? Like, is there a command line thing I can run that compares the config with a file?

[peterbe]

Makes sense. I'm still not 100% comfortable with EditorConfig. I'm so confused as to what's going with VSCode and Black and Prettier and the magic is mixes.

Any objections @fiji-flo ?

[nschonni]

How do I test this? Like, is there a command line thing I can run that compares the config with a file?

No, it's really aimed at telling your IDE what it should use. There is an old depricated tool someone else wrote called "eclint". Might do a separate PR with some cleanups with it later, but it's 'dumb' and doesn't do any proper AST. Tools like Prettier also read this config

[Ryuno-Ki]

How do I test this?

Ideally, your IDE should insert the right indentation (or even fix it?) depending on what's defined.
As mentioned before, there's a VS Code extension that teaches VS Code how to read an .editorconfig.

[peterbe]

@fiji-flo ping r?

[fiji-flo]

👍 guess I'll delete my local .editorconfig now