fix: typescript error - defaultFolderId null to undefined

src/app/dashboard/documentos/novo/page.tsx

@@ -22,7 +22,7 @@ export default async function NewDocumentPage({
             user={session}
             organization={session.organization!}
             folders={folders}
-            defaultFolderId={params.folder || null}
+            defaultFolderId={params.folder}
         />
     );
 }