Poles UI/UX premium: fondasi global

- Font Plus Jakarta Sans (Google Fonts) menggantikan font sistem default
- Sidebar: brand area gradient + nama sekolah, nav aktif jadi pill gradient
  biru-indigo + chevron, label grup lebih elegan, footer badge NOCTKJ.net
- Topbar: sticky + backdrop-blur glass
- Background utama: gradient halus slate → biru samar
- Kartu standar premium (.card) + tombol (.btn-primary/.btn-outline) + input
  seragam di CSS; kartu utama halaman diseragamkan rounded-2xl
- Border global diselaraskan ke palet slate; scrollbar & seleksi teks premium
- Verifikasi: 29 test / 99 assertion, blade cache OK, vite build OK

resources/views/notifications/index.blade.php

@@ -9,7 +9,7 @@
         <p class="text-sm text-gray-500">Riwayat notifikasi pelanggaran siswa</p>
     </div>
 
-    <div class="bg-white rounded-xl shadow-sm border border-gray-200 overflow-hidden">
+    <div class="bg-white rounded-2xl shadow-sm border border-slate-200/80 overflow-hidden">
         @if($notifications->count() > 0)
             <div class="divide-y divide-gray-100">
                 @foreach($notifications as $notif)