message: [PF4] Migrate Refresh Button
diff: import * as React from 'react';
  import { connect } from 'react-redux';
  -import { Button, Icon } from 'patternfly-react';
  +import { Button, Tooltip } from '@patternfly/react-core';
  +import { SyncAltIcon } from '@patternfly/react-icons';
  import { TimeInMilliseconds } from '../../types/Common';
  import { KialiAppAction } from '../../actions/KialiAppAction';
  import { KialiAppState } from '../../store/Store';
  import { ThunkDispatch } from 'redux-thunk';
  import { GlobalActions } from '../../actions/GlobalActions';
  -import { style } from 'typestyle';
  type ComponentProps = {
  id?: string;
  @@ -20,10 +20,6 @@ type ReduxProps = {
  type Props = ComponentProps & ReduxProps;
  -const refreshButtonStyle = style({
  - marginLeft: '0.5em'
  -});
  -
  class RefreshButton extends React.Component<Props> {
  getElementId() {
  return this.props.id || 'refresh_button';
  @@ -35,14 +31,17 @@ class RefreshButton extends React.Component<Props> {
  render() {
  return (
  + <Tooltip content={<>Refresh</>}>
  <Button
  id={this.getElementId()}
  onClick={this.handleRefresh}
  - disabled={this.getDisabled()}
  - className={refreshButtonStyle}
  + isDisabled={this.getDisabled()}
  + aria-label="Action"
  + variant="plain"
  >
  - <Icon name="refresh" />
  + <SyncAltIcon />
  </Button>
  + </Tooltip>
  );
  }
  