Template suggestions by form id

The fix submitted with ✨ Forms do not have theme suggestions Fixed used the form element ID, which at least in some cases is randomly regenerated for each page load.

The fix provided in https://git.drupalcode.org/project/twigsuggest/-/commit/ea1c5a36236da7f1... and https://git.drupalcode.org/project/twigsuggest/-/commit/f8e1a6df064097f8... does this for the form ID as defined by the form itself.

I think the difference is that the form ID that Nic added is the one that is guaranteed to be unique for each form on a page. So it can be pretty stable for some elements, and end up with like a --2 suffix for some, and apparently for others be completely random.

The form ID Keegan provided here is always the same for a form, but also (confusingly) called form ID, and defined in the code defining the form.

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