Update config helper for CKEditor v5?

[kirk-quinbar]

any plans on updating this code to work with CKEDitor v5? my initial interest is in the html5 placeholder support.

[AlfonsoML]

At the moment I still haven't touched CKEditor 5 because it is still missing important features and I don't need the new features that have been introduced like multiple users, so don't expect an update soon.