message: Fix issue with unknown node label
diff: @@ -249,6 +249,9 @@ export class GraphStyles {
  case NodeType.SERVICE:
  label.unshift(service);
  break;
  + case NodeType.UNKNOWN:
  + label.unshift(UNKNOWN);
  + break;
  case NodeType.WORKLOAD:
  label.unshift(workload);
  break;
  