This PR makes djangocms-text-ckeditor integrate with a user's dark mode preference:
Editor field in html mode retains the system settings colors if no custom css is loaded
Editor field background in source mode falls back to system settings (of django admin) avoiding to have to edit source code in light gray on white in dark mode
Max height of editor field in source mode is removed which was introduced in django admin 3.x and lead to a editor field only a few lines high
This PR request does not provide a dark mode skin (ckeditor 4 user interface).
This PR makes djangocms-text-ckeditor integrate with a user's dark mode preference:
This PR request does not provide a dark mode skin (ckeditor 4 user interface).