* <https://ilja.space/notice/ALpd6nux5hT2nsfetM>
* Previous commit: `|> fill_props(token) after the cond` in the parser
* This commit: Don't use intention-specific data in the tokens (e.g. left is reverse, x is mfm-spinX)
* <https://ilja.space/notice/ALpcK6W59UjkIUofU8>
* TODO: Use less files
* Previous commit: Change nested if-statement in mfm.ex to `cond do`