Ui for admin. Logout successfull. Admin not reachable from homepage. Neither is logoutpage. Update for Architecture file.

apps/public-web/app/(site)/admin/LogoutButton.tsx

@@ -0,0 +1,11 @@
+"use client";
+
+export default function LogoutButton() {
+    const backend = process.env.NEXT_PUBLIC_BACKEND_URL ?? "http://localhost:8080";
+
+    return (
+        <form action={`${backend}/logout`} method="post">
+            <button type="submit">Logout</button>
+        </form>
+    );
+}