Add .oxlintrc.json to JSON with comments

[TheAlexLichter]

Adds .oxlintrc.json, Oxlints config file to JSON with comments entry.

Checklist:

• I am adding a new extension to a language.
  • The new extension is used in hundreds of repositories on GitHub.com
    • https://github.com/search?type=code&q=NOT+is%3Afork+path%3A*.oxlintrc.json
  • I have included a real-world usage sample for all extensions added in this PR:
    • Sample source(s):
      • https://github.com/monkeytypegame/monkeytype/blob/2f5cb164cbb9ad2c6ab1242053f1f23fdb34f6f2/frontend/.oxlintrc.json
    • Sample license(s): GPLv3

[lildude]

You need to add the sample you reference to this PR.

[ArnaudBarre]

A real world usage (not from the docs) with a comment in a repo with more than 18k star: https://github.com/monkeytypegame/monkeytype/blob/2f5cb164cbb9ad2c6ab1242053f1f23fdb34f6f2/frontend/.oxlintrc.json
(found in the first page of results provided by @TheAlexLichter)

[ArnaudBarre]

@lildude I think the merge is blocked by the requested change review?

[lildude]

Oh yes. Whoops.

[lildude]

LGTM. Thanks.

Important

The changes in this PR will not appear on GitHub until the next release has been made and deployed. See here for more details.