Remove raw DB queries in AssignOwnerNode::buildConfigurationForm() and always use autocomplete

The Needs Review Queue Bot → tested this issue. It either no longer applies to Drupal core, or fails the Drupal core commit checks. Therefore, this issue status is now "Needs work".

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Liam Morland → made their first commit to this issue’s fork.

I have created an issue fork with the patch from #16 rebased onto 11.x. I am not seeing the button to create a merge request.

Seems fine to make this consistent with the node edit form 👍

Ignore the yellow circle the autocomplete field seems real small and doesn't expand. Can we make it a little longer.

Added before screenshot to the IS waiting on after.

the module moved to contrib