feat: New actions menu for components in Studio (behind waffle flag) (#31853)

cms/static/sass/elements/_xblocks.scss

@@ -68,6 +68,24 @@
       width: 49%;
 
       @include text-align(right);
+
+      // On components, if the copy/paste feature flag is enabled, we put the actions into a dropdown menu.
+      .wrapper-nav-sub {
+        @include text-align(left); // Undo the 'text-align: right' inherited from the parent
+
+        z-index: 10; // Stay in front of things like the video xblock or the "add component" buttons
+
+        .nav-item {
+          a {
+            // Match styling of ".wrapper-header nav .nav-item a" (dropdowns in Studio header)
+            color: $gray-d1;
+
+            &:hover {
+              color: $uxpl-blue-hover-active;
+            }
+          }
+        }
+      }
     }
   }