fix responsive design of button to collapse the sidebar

pkgs/ui/src/components/sidebar/index.tsx

@@ -113,8 +113,12 @@ export function Sidebar(props: SidebarProps) {
             priority
           />
         </div>
-        <div className="absolute top-0 right-0">
+        <div className="lg:absolute lg:top-0 lg:right-0">
-          <IconButton size="large" className="text-white" onClick={onClose}>
+          <IconButton
+              size="large"
+              className="text-white"
+              onClick={onClose}
+          >
             <ChevronLeftIcon fontSize="inherit" />
           </IconButton>
         </div>