Update taxonomy term base fields (parent and weight) to be configurable on form display

Re-rolled D9 patch from #18 so that it work on Drupal 10.2.1

Looking forward to getting this merged. It's necessary when trying to change the parent term of a large vocabulary.

Re-rolled the patch the patch from #18 to work on Drupal 10.2.1

I've also created an issue fork.

After applying this "taxonomy_base_polja.patch" patch, all the existing selection of parent term for existing vocabularies are no longer there. As it is considered as new field. Any solutions to keep the previous selections of parent terms for existing taxonomy terms?

@ashkay9
Existing values should be there, this patch lets you change the parent term widget in "form display".
Worked well for me on Drupal 10, which version are you on?

Re-rolled patch to apply to 10.3

#26 extended with configurable parent and weight on detail page, not just form display.

Patch for drupal 11.x (based on #27)

@gugalamaciek:
Any chance you could help us roll-in your patch from #30 in issue's merge request MR !6200?

Apparently the merge request has some conflicts and would probably need to be rebased locally manually.

Thanks in advance!