fix: make collapsed scrollbar scrollable

spinifex/services/spinifexui/frontend/src/components/ui/sidebar.tsx

@@ -392,7 +392,10 @@ export function SidebarContent({
   return (
     <div
       className={cn(
-        "no-scrollbar flex min-h-0 flex-1 flex-col gap-0 overflow-auto group-data-[collapsible=icon]:overflow-hidden",
+        "no-scrollbar flex min-h-0 flex-1 flex-col gap-0 overflow-x-hidden overflow-y-auto",
+        // The collapsed rail is exactly one icon wide, so a scrollbar gutter
+        // would squeeze the icons. Hide it but keep the scrolling.
+        "group-data-[collapsible=icon]:[scrollbar-width:none] group-data-[collapsible=icon]:[&::-webkit-scrollbar]:hidden",
         className,
       )}
       data-sidebar="content"