message: frontend: Adds links for monitoring UIs
diff: @@ -35,14 +35,14 @@ class NavLink_ extends React.Component {
  }
  render () {
  - const {name, flags, required = null, onClick = null} = this.props;
  + const {name, flags, required = null, onClick = null, target = '_self'} = this.props;
  if (required && !flags[required]) {
  return null;
  }
  const klass = classNames('co-m-nav-link', {active: this.isActive});
  return <li className={klass} key={this.href_}>
  - <Link to={this.href_} onClick={e => {
  + <Link target={target} to={this.href_} onClick={e => {
  if (onClick) {
  return onClick(e);
  }
  @@ -136,6 +136,8 @@ class Nav_ extends SafetyFirst {
  <NavSection text="Troubleshooting" icon="fa-life-ring" {...accordionProps('troubleshooting')}>
  <NavLink resource="search" name="Search" sectionId="troubleshooting" />
  <NavLink resource="events" name="Events" sectionId="troubleshooting" />
  + <NavLink href="/prometheus" target="_blank" name="Prometheus" sectionId="troubleshooting" />
  + <NavLink href="/alertmanager" target="_blank" name="Prometheus Alerts" sectionId="troubleshooting" />
  </NavSection>
  <NavSection text="Administration" icon="fa-cog" {...accordionProps('admin')}>
  