Fix CSPELL - ESLINT - PHPCS

I fixed all the issues now and It's all green: https://git.drupalcode.org/project/jquery_deprecated_functions/-/merge_r...

I'll leave it to "Needs Review" for a while, just in case anyone wants to review this (and get extra credits!)

Seems like no one bothered about reviewing this, so I'll move this to "Fixed", if anyone is having issues with this, please let me know and I'll re-open the task

Automatically closed - issue fixed for 2 weeks with no activity.