Create a D10 / CKEditor 5 version of ckeditorheight, OR better go CORE

Thx ifrik for pointing this out early. MRs appreciated!

The issue in the CKEditor 5 queue regarding manipulating height is https://github.com/ckeditor/ckeditor5/issues/636 .

It doesn't appear that they're providing a API-based solution as of right now, like a configuration option. A workaround is referenced in https://github.com/ckeditor/ckeditor5/issues/636#issuecomment-405952805 , specifically https://stackoverflow.com/a/46559355 , specifying that the CKEditor editable area can be targeted via .ck-editor__editable_inline

If we port the ability to disable the auto_grow plugin to this module, the attached JS would effectively solve this issue. (With auto_grow enabled, the min-height will keep getting reset).

For those who are looking for a low-tech solution for this and don't need the dynamic line-height adjustments provided by the ckeditorheight module, it should be sufficient to add a compendium of CSS that reacts to the the various row heights populated by Drupal textareas. I've tested the below approach and it works well:

textarea[data-ckeditor5-id][rows="4"]+.ck-editor .ck-editor__editable_inline {
  min-height: calc(1.5em * 4);
}
textarea[data-ckeditor5-id][rows="5"]+.ck-editor .ck-editor__editable_inline {
  min-height: calc(1.5em * 5);
}
textarea[data-ckeditor5-id][rows="6"]+.ck-editor .ck-editor__editable_inline {
  min-height: calc(1.5em * 6);
}

Thx for sharing your research! Disabling the autogrow plugin should not be too hard, and if someone (tm) puts the peaces together, we are ready to release a 2.x version for ckeditor5. THat said, i won't do it soon-ish, but someone picks this up, a MR is appreciated!

See #3241295-25: CKEditor 5 isn't respecting field widgets row settings.

We're core.