Open the footnotes edit dialogue via double-click

At least in CKE5 version, you need to click on the footnote first, then click on the footnote icon in the toolbar to edit it. This could be improved by making this work via double-click. I will update the issue summary accordingly.

This is working now with double-click in https://www.drupal.org/project/footnotes/issues/3405986 ✨ Switch to Modal window to allow more editor control Fixed