Fix: drag-and-drop into folders now works
Previously the plugin blocked all drag events in file explorer, preventing native move-into-folder behavior.
3-zone detection on folder targets:
| Zone | Action |
|---|---|
| Top 25% | Reorder above (line indicator) |
| Middle 50% | Move into folder (highlight, Obsidian native) |
| Bottom 25% | Reorder below (line indicator) |
Files (non-folders) still use 50/50 split for above/below reordering.