Scrolling content is narrowed by the scrollbar width while the scrollbar is shown, so it no longer sits under the bar

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

src/ui/widgets/Menu.ts

@@ -109,7 +109,7 @@ export class Menu extends Popup {
     const size = this.list.measure();
     const room = this.roomFor(this.scroll);
     const scrolls = size.h > room;
-    this.scroll.minWidth = size.w + (scrolls ? Theme.scrollbarWidth + 4 : 0);
+    this.scroll.minWidth = size.w + (scrolls ? Theme.scrollbarWidth : 0);
     this.scroll.minHeight = Math.min(size.h, room);
     this.scroll.scrollTo(0);
     this.refreshLayout();