Feature Request

• Yes, I reviewed the contribution guidelines.

Describe your use case and the problem you are facing

A while back support was added to pass extensions to the make-json command: #439 but the make-pot still has hardcoded extensions for JS extraction. https://github.com/wp-cli/i18n-command/blob/main/src/MakePotCommand.php#L672

Describe the solution you'd like

I want to be able to pass the TS extension to make-pot. A current workaround is to include a dist folder, but of course, it would be much nicer to have references to the actual code in the resulting pot file.