Mantine overhaul

frontend/src/components/PageEditor.js

@@ -0,0 +1,9 @@
+import React from "react";
+
+export default function PageEditor({ pdfFile }) {
+  return (
+    <div className="w-full h-full flex items-center justify-center">
+      <p className="text-gray-500">Page Editor is under construction.</p>
+    </div>
+  );
+}