Simplify ckeditor5_module_implements_alter() in favor of checking for ckeditor5 in media module

media module does now rely on the implicit default hook order based on module name. It also is completely unclear to me why we implement this twice instead of using the base form id like editor and ckeditor5, but wasn't sure about the scope here.

I'd like to request this be postponed on 📌 Hook ordering across OOP, procedural and with extra types Active

We are currently using that in examples and it's the only implementation of that grouping in core.

We do have test coverage for it, but removing all of the examples and changing how hmia works before will make that issue harder to understand this part of the issue.

It will also be a lot easier to incorporate this after 📌 Hook ordering across OOP, procedural and with extra types Active vs rebasing 📌 Hook ordering across OOP, procedural and with extra types Active on top of this.

If no objections to #4