message: Show error text on saving results in surveyjs.io service
diff: @@ -4174,7 +4174,7 @@ export class SurveyModel
  if (success) {
  self.setCompletedState("success", "");
  } else {
  - self.setCompletedState("error", "");
  + self.setCompletedState("error", response);
  }
  }
  self.onSendResult.fire(self, {
  