Refactor index page

Display all interactives and redesign using cards.

src/pages/BalancedTernaryGamePage.tsx

@@ -0,0 +1,13 @@
+import BalancedTernaryGame from '@/components/BalancedTernaryGame';
+
+const BalancedTernaryGamePage = () => {
+  return (
+    <div className="min-h-screen bg-background p-6">
+      <div className="max-w-4xl mx-auto">
+        <BalancedTernaryGame />
+      </div>
+    </div>
+  );
+};
+
+export default BalancedTernaryGamePage;