hook_field_widget_form_alter is not longer supported in D10

fixed the issue and created patch please review it.

Hi. I just send first pull request please review.

Hello,

I've checked the patch from #2 but unfortunately it is not complete and didn't work for me.
I've also tested the MR from #4 and it did work. Now the current domain is applied as default value for taxonomies in my case.

Finally, I'm adding some additional context information to the ticket description.

Ok, I had a second look and I was mistaken.

#2 Is correct, because it is using hook_field_widget_single_element_form_alter which is the recommended replacement for hook_field_widget_complete_form_alter().

#4 Uses hook_field_widget_complete_form_alter() instead but it is not needed for this context.

In any case, I think it would be good to have a MR with the #2 approach. In that way it is easier for maintainers to merge it.

Thanks both!