Add PureScript LSP/Highlighting support (#6911)

This PR adds basic support for the language using the
`purescript-language-server`.

Release Notes:

- Added support for PureScript.
db68fc5130Iván Molina Rebolledo committed on 1/28/2024, 10:44:50 PM· committed by GitHubparent7767062
9 files changedLine totals unavailable