Have Views' taxonomy term filters use UUIDs instead of entity IDs

Unable to decode output into JSON: Syntax error
Error: Call to a member function uuid() on null in taxonomy_convert_entity_ids_to_uuids().
on line 78 app\core\modules\taxonomy\taxonomy.post_update.php

For this issue, we created a patch and patch is working fine.

Here it is just a re-roll of previous patch. i hope i didn't miss a thing.

Let's see if it passes. Maybe we'll have also a MR that could help chasing and keep it updated till ... it's done

Small update, attempting to fix CS/phpstan errors.

+ A version for 10.1.x, as it seems they are not the same.

Taking a brief look and looks like this is very close.

Seems like changing to UUID should be captured in a change record though, just to let others know.

There is still a lot of clean up happening here, which makes it really hard to review. While I like that logic is moved to its own methods instead of having one giant method, it makes reviewing this very hard, because its really hard to see which changes are needed here and which changes are just moving existing logic around. Please please please keep the patch/MR as small as possible

This feels very light on test coverage, but again, since it's hard to see what is actually new code here that should have test coverage, it might be sufficient.

Since we have an update hook, it should have an upgrade path test for that hook.