Dev branch broken

Have created an initial merge request that looks like it's working (although there are other issues that need investigation which can be done in a different issue). I'll need to merge in the coding standards work and check that doesn't break anything.

Updated MR with coding standards fixes

I've had to revert a few of the commits so known, working patches could be reapplied and so I think this is probably a good starting place for ongoing development.

If this can be reviewed, it'd be much appreciated! Or at least my approach discussed. We'll probably have to revisit https://www.drupal.org/project/coc_forms_auto_export/issues/3259009 🐛 PHP Warnings/Notices on Download Page Fixed and https://www.drupal.org/project/coc_forms_auto_export/issues/3286562 📌 Automated Drupal 10 compatibility fixes Fixed but it'll get the dev branch in a working state.