consider making some aspects customizable

[quantenzitrone]

First of all, BIG THANKS. I really LOVE the alejandra style, alejandra makes writing nix code so much more fun and consistent.

Tho, it would be nice to be able to configure some aspects. Some aspects that one might want to configure:

• indentation: tabs or x spaces
  • indentation is a controversial topic, and while i get along the alejandra 2 space style with using this vscode extension, something like this is not available for every editor and i don't like being forced a specific indentation style
• maximum line length
  • I'm not sure if alejandra even has this at the moment, but there is at least one issue addressing this topic and if maximum line length is or will be a rule, i would like this to be customizable too

[wildwestrom]

I was also wondering why my indentation settings weren't working. Yeah, seems like it's just spaces.

Please either close this as "won't fix" or consider allowing for this so one of us can implement it.