message: Using React.memo instead PureComponent
diff: @@ -22,11 +22,11 @@ const svgSpinner = size => {
  }
  };
  -const Spinner = ({ className, size, ...restProps }) => (
  +const Spinner = React.memo(({ className, size, ...restProps }) => (
  <div {...restProps} className={classNames(baseClassNames, className)}>
  {svgSpinner(size)}
  </div>
  -);
  +));
  Spinner.propTypes = {
  style: PropTypes.object,
  