feat: create NotFoundPage component

src/components/helper/NotFoundPage.tsx

@@ -0,0 +1,17 @@
+import Button from '@/components/Button';
+
+const PageNotFound = () => {
+  return (
+    <div className='w-full h-full flex-1 flex flex-col justify-center items-center gap-4'>
+      <h2 className='text-2xl font-bold text-error'>Halaman Tidak Ditemukan</h2>
+      <p className='text-gray-600 text-center'>
+        Halaman atau data yang anda cari tidak ditemukan.
+      </p>
+      <Button href='/dashboard' className='text-base-100'>
+        Kembali ke Dashboard
+      </Button>
+    </div>
+  );
+};
+
+export default PageNotFound;