fixes margin and padding regression

Author: Adam Argyle

app/components/selection/box-model.element.js

@@ -28,17 +28,17 @@ export class BoxModel extends HTMLElement {
       this.drawable = {
         height:   bounds.height,
         width:    bounds.width,
-        top:      bounds.top + window.scrollY,
-        left:     bounds.left,
+        top:      0,
+        left:     0,
         rotation: 'rotate(-45)',
       }
     }
     else if (mode === 'margin') {
       this.drawable = {
         height:   total_height,
         width:    total_width,
-        top:      bounds.top + window.scrollY - sides.top,
-        left:     bounds.left - sides.left,
+        top:      0 - sides.top,
+        left:     0 - sides.left,
         rotation: 'rotate(45)',
       }
     }

app/components/selection/handles.element.css

@@ -10,6 +10,7 @@
   width: var(--width);
   height: var(--height);
   display: grid;
+  grid-template-rows: 1fr;
   isolation: isolate;
 }