Allow embedding of share page.

src/app/logout/page.tsx

@@ -1,5 +1,10 @@
 import Logout from './Logout';
+import { Metadata } from 'next';
 
 export default function () {
   return <Logout />;
 }
+
+export const metadata: Metadata = {
+  title: 'Logout | umami',
+};