message: Fix for: react: SurveyWindow component renders window header twice
diff: @@ -18,13 +18,13 @@ export class SurveyWindow extends Survey {
  }
  render(): JSX.Element {
  if (!this.window.isShowing) return null;
  - var header = this.renderHeader();
  + var header = this.renderWindowHeader();
  var body = this.window.isExpanded ? this.renderBody() : null;
  let style: React.CSSProperties = {
  position: "fixed",
  bottom: 3,
  right: 10,
  - maxWidth: "60%"
  + maxWidth: "60%",
  };
  return (
  <div className={this.css.window.root} style={style}>
  @@ -33,7 +33,7 @@ export class SurveyWindow extends Survey {
  </div>
  );
  }
  - protected renderHeader(): JSX.Element {
  + protected renderWindowHeader(): JSX.Element {
  var styleA = { width: "100%", cursor: "pointer" };
  var styleTitle = { paddingRight: "10px" };
  var glyphClassName = this.window.isExpanded
  