feat: release design system engine, studio and component contracts

packages/viewer/viewer.css

@@ -27,8 +27,12 @@
   align-items: center;
   gap: 0.5rem;
 }
-.wrn-viewer-toolbar > [data-viewer-title][hidden] { display: none; }
-.wrn-viewer-toolbar:has(> [data-viewer-title][hidden]) { justify-content: flex-end; }
+.wrn-viewer-toolbar > [data-viewer-title][hidden] {
+  display: none;
+}
+.wrn-viewer-toolbar:has(> [data-viewer-title][hidden]) {
+  justify-content: flex-end;
+}
 /* The generic control look applies only to controls the package has not styled
    itself; without this it outranks every specific rule below. */
 .wrn-viewer button:not([class*="wrn-viewer-"]),