fix: add missing closing brace for about tab

src/app/page.tsx

@@ -240,7 +240,7 @@ export default function Home() {
         />
       )}
 
-      {activeTab === 'about' && <AboutPage userEmail={user.email || undefined} />
+      {activeTab === 'about' && <AboutPage userEmail={user.email || undefined} />}
     </div>
   );
 }