fix: address final review findings (order-notification watcher robustness)

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

src/app/features/website/user-experience/components/floating-notifications/floating-notifications.component.scss

@@ -49,6 +49,10 @@
   border-color: color-mix(in srgb, var(--primary-color) 45%, white);
 }
 
+.floating-note-clickable {
+  cursor: pointer;
+}
+
 @keyframes note-in {
   from {
     opacity: 0;