PHP warning

Ready for review.

MR: https://git.drupalcode.org/project/project_browser/-/merge_requests/692

I was initially putting a warning via the "logger" service, but I don't think it's really needed, so I removed it in this commit. No author could happen if the person who created the module canceled their account, so the project still exists but is assigned to anonymous user.

I created ✨ Remove author from Projects Active as well.

This seems like a sensible change.

Saving credit

Merged !692 🎉

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