Ability to paste images into MD editor
Images should be pasteable via clipboard ctrl+V as a shortcut, similar to how Github's MD editor works. This would be a gigantic time saver.
Better markdown tables formatting
Writing tables in markdown is very difficult and annoying. It would be nice if you could add this ( https://github.com/susisu/mte-kernel ) or similar package to handle them. This looks easy to implement, and could improve markdown a lot. A little effort will bring many benefits.
complete Backup export and import
Looking for a nice way to create a complete wiki backup which contains Users, Settings and Content. And a way to import it in the setup wizard after Installing the wiki
Diagram should likely span across the entire page width
Both mermaid and Draw.io integrations are phenomenal. Just thought that it is unfortunate that they don't end up using the entire real-estate.
Moving a page should update links
Currently when moving or renaming a page, all existing links point to the old page. The correct behaviour would be to update all links to the new page, either optional or explicit.
Delete folders in the Image / File Manager
Ability to delete folders in the Image / File Manager.
Templates / Content Transclusion
Have a template or transclusion function, just like in MediaWiki( https://www.mediawiki.org/wiki/Help:Templates ), which would give people the ability to create infoboxes or other types of templates that are used on many other wikis.
Export pages to pdf
Looking for a nice way to share (formatted) wiki pages with external links intact