Changes

Co-authored-by: Reifonas <211114984+Reifonas@users.noreply.github.com>

src/pages/Index.tsx

@@ -13,6 +13,7 @@ const Index = () => {
   const fileInputRef = useRef<HTMLInputElement>(null);
   const [loadingDemo, setLoadingDemo] = useState(false);
   const [loadingDemoIFC, setLoadingDemoIFC] = useState(false);
+  const [loadingDemoCotovelo, setLoadingDemoCotovelo] = useState(false);
   const [converting, setConverting] = useState(false);
   const { model, setModel, xrSupported, setXrSupported } = useModelStore();