Merge pull request #14 from AshGw/dev-pipeline

feat: `NotFound` set

src/app/not-found.tsx

@@ -1,5 +1,9 @@
 function NotFound() {
-  return <div>404 | Page could not be found or whatever</div>;
+  return (
+    <div className="flex items-center justify-center h-screen">
+      404 | Resource not found.
+    </div>
+  );
 }
 
 export default NotFound;