✨ Adding new template with automatique routing

ts-router/src/errors/404.tsx

@@ -0,0 +1,8 @@
+export default function NotFound() {
+  return (
+    <section class="text-gray-700 p-8">
+      <h1 class="text-2xl font-bold">404: Not Found</h1>
+      <p class="mt-4">It's gone 😞</p>
+    </section>
+  );
+}