fix: use the correct with in getBoundingRectangleWithoutChildren().

core/block_svg.ts

@@ -457,7 +457,7 @@ export class BlockSvg
   getBoundingRectangleWithoutChildren(): Rect {
     return this.getBoundingRectangleWithDimensions({
       height: this.height,
-      width: this.width,
+      width: this.childlessWidth,
     });
   }