- Enable task list checkbox toggling in preview mode with live content updates
- Add task list and table insertion buttons to InsertToolbar
- Implement smart block snippet insertion with automatic newline handling
- Add horizontal scroll wrapper for wide tables in preview
- Fix editor scroll position preservation during content updates
- Use useLayoutEffect to prevent scroll jumps when textarea auto-resizes
- Update task list styling
- Add uploadAttachment method to NextcloudAPI (WebDAV PUT to .attachments directory)
- Add InsertToolbar component that appears on cursor placement in editor
- InsertToolbar provides quick access to insert links (with modal) and files
- Add Attach button to main toolbar as alternative upload method
- Insert markdown references at cursor position after upload
