Issue #3443576 by finnsky, mherchel, arunkumark, smustgrave, ckrina,...

Issue #3443576 by finnsky, mherchel, arunkumark, smustgrave, ckrina, Gauravvvv: Mobile version of Navigation menu doesn't properly reset Drupal.displace() on closing

core/modules/navigation/css/components/admin-toolbar.css

@@ -47,7 +47,11 @@ body {
   position: absolute;
   inset-block-start: 0;
   inset-inline-start: 0;
-  width: var(--admin-toolbar-sidebar-width);
+}
+@media (min-width: 64rem) {
+  .admin-toolbar__displace-placeholder {
+    width: var(--admin-toolbar-sidebar-width);
+  }
 }
 /**
  * The Admin toolbar component.

core/modules/navigation/css/components/admin-toolbar.pcss.css

@@ -47,7 +47,10 @@ body {
   position: absolute;
   inset-block-start: 0;
   inset-inline-start: 0;
-  width: var(--admin-toolbar-sidebar-width);
+
+  @media (--admin-toolbar-desktop) {
+    width: var(--admin-toolbar-sidebar-width);
+  }
 }
 
 /**