v1.1.7 – Fix overlay and add Gap and Padding settings

Fix overlay and add Gap and Padding settings

✔ All layouts (grid, full, side-by-side, master-stack)
→ now display a preview at exactly the same size as the final window
✔ GAP / EDGE_PADDING updates → preview is now correct instantly
✔ No more shrinking, no more top/left offset
✔ Overlay is now drawn in local coordinates → no more clipping