- Dragging a child of a wrapping row layout inserts by visual row and position (rows are found
from the flow, so the insertion line spans the right row), instead of by x alone.
- Dragging a child of a grid layout places it in the cell under the pointer (nearest cell over
gaps), with a dashed cell highlight while dragging; one undo step.
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
