first commit

web/src/app/about/index.tsx

@@ -0,0 +1,11 @@
+import { Button } from "@heroui/react";
+import { Link as RouterLink } from "react-router-dom";
+
+export default function AboutPage() {
+  return (
+    <div className="py-16">
+      <h1>About</h1>
+      <Button as={RouterLink} to="/">Back</Button>
+    </div>
+  );
+}