LS: disable jquery migration on testwikis (#4097)
- LS: disable jquery migration on testwikis
- Update LocalSettings.php
- CI: lint code to MediaWiki standards
Check commit and GitHub actions for more details
- Fix tabbing, caused by CI when it tried to replace spaces
Co-authored-by: github-actions <github-actions@users.noreply.github.com>
Co-authored-by: Universal Omega <54654040+Universal-Omega@users.noreply.github.com>