Add button to start random reel in App component

client/src/App.tsx

@@ -9,6 +9,9 @@ export default function App() {
   const startRandomQuiz = () => {
     navigate(`/quiz?mode=all&nonce=${Date.now()}`);
   };
+  const startRandomReel = () => {
+    navigate(`/entry/random?nonce=${Date.now()}`);
+  };
 
   return (
     <div className="app-shell">
@@ -31,6 +34,9 @@ export default function App() {
             >
               New Random Quiz
             </NavLink>
+            <button className="link nav-link-btn" onClick={startRandomReel}>
+              Random Reel
+            </button>
           </nav>
         </div>
       </header>