Fix: moonraker widget error when not printing (#2468)

src/widgets/moonraker/component.jsx

@@ -34,12 +34,8 @@ export default function Component({ service }) {
     );
   }
 
-  let currentLayer = "-";
-  let totalLayer = "-";
-  if (printStats.result.status.print_stats.info.total_layer !== null) {
-    currentLayer = printStats.result.status.print_stats.info.current_layer;
-    totalLayer = printStats.result.status.print_stats.info.total_layer;
-  }
+  const printStatsInfo = printStats.result.status.print_stats.info ?? {};
+  const { current_layer: currentLayer = "-", total_layer: totalLayer = "-" } = printStatsInfo;
 
   return (
     <Container service={service}>