refactor(ui): sesuaikan UI balita & ibu-hamil dengan pola penghargaan

- Gunakan HeaderSearch + dua-komponen pattern (outer + inner list)
- Ganti Loader → Skeleton h={600}, ActionIcon → Button size="xs" variant="light"
- Tambah Paper wrapper, layout="fixed" table, desktop/mobile responsive split
- Search debounce 1000ms via useDebouncedValue

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/app/admin/(dashboard)/auth/validasi-admin/page.tsx

@@ -190,7 +190,7 @@ export default function Validasi() {
       case 2:
         return '/admin/landing-page/profil/program-inovasi';
       case 3:
-        return '/admin/kesehatan/posyandu';
+        return '/admin/kesehatan/posyandu/list-posyandu';
       case 4:
         return '/admin/pendidikan/info-sekolah/jenjang-pendidikan';
       default: