message: Remove empty div for complete and start pages in react
diff: @@ -149,13 +149,13 @@ export class Survey extends SurveyElementBase<any, any>
  }
  var htmlValue = { __html: this.survey.processedCompletedHtml };
  return (
  - <div>
  + <React.Fragment>
  <div
  dangerouslySetInnerHTML={htmlValue}
  className={[this.css.body, this.css.completedPage].join(" ")}
  />
  {completedState}
  - </div>
  + </React.Fragment>
  );
  }
  protected renderCompletedBefore(): JSX.Element {
  @@ -176,13 +176,13 @@ export class Survey extends SurveyElementBase<any, any>
  : null;
  var pageId = this.survey.startedPage ? this.survey.startedPage.id : "";
  return (
  - <div>
  + <React.Fragment>
  <div id={pageId} className={this.css.body}>
  {this.renderNavigation("top")}
  {startedPage}
  {this.renderNavigation("bottom")}
  </div>
  - </div>
  + </React.Fragment>
  );
  }
  protected renderSurvey(): JSX.Element {
  @@ -378,7 +378,7 @@ export class Survey extends SurveyElementBase<any, any>
  !!self.state && !!self.state.modelChanged ? self.state.modelChanged : 0;
  self.setState({ modelChanged: counter + 1 });
  };
  - this.survey.onPartialSend.add(sender => {
  + this.survey.onPartialSend.add((sender) => {
  if (!!self.state) {
  self.setState(self.state);
  }
  @@ -421,6 +421,6 @@ export class Survey extends SurveyElementBase<any, any>
  }
  }
  -ReactElementFactory.Instance.registerElement("survey", props => {
  +ReactElementFactory.Instance.registerElement("survey", (props) => {
  return React.createElement(Survey, props);
  });
  