Remove unused isLoadingAdvancedAuth variable

Co-authored-by: cadtoolbox <12723486+cadtoolbox@users.noreply.github.com>

frontend/src/pages/UsersPage.tsx

@@ -37,7 +37,7 @@ export function UsersPage() {
   });
 
   // Check if advanced auth is enabled
-  const { data: advancedAuthStatus, isLoading: isLoadingAdvancedAuth } = useQuery({
+  const { data: advancedAuthStatus } = useQuery({
     queryKey: ['advancedAuthStatus'],
     queryFn: () => api.getAdvancedAuthStatus(),
     initialData: { advanced_auth_enabled: false, smtp_configured: false },