fix(studio): refine preset surfaces and repair gallery interactions

packages/ui/components/List.wrn

@@ -107,6 +107,9 @@ component List {
     }
     .wrn-list__description { margin-top: 0.25rem; color: var(--wrn-color-text-muted); font-size: 0.875rem; line-height: 1.5rem; }
     .wrn-list__items {
+      list-style: none;
+      margin: 0;
+      padding: 0;
       overflow: hidden;
     }
     .wrn-list__items:is([data-variant="default"], [data-variant="divided"]) > .wrn-list__item + .wrn-list__item {