feat: Add PageHead component

packages/ui/.config/vitest/setup.ts

@@ -1 +1,10 @@
 import '@testing-library/jest-dom';
+import { vi } from 'vitest';
+
+class ResizeObserverMock {
+  observe = vi.fn();
+  unobserve = vi.fn();
+  disconnect = vi.fn();
+}
+
+global.ResizeObserver = ResizeObserverMock;