message: Monitoring: Fix sidebar "Alerts" entry to be highlighted on Rule page
  Fix the navigation sidebar's "Alerts" entry to be highlighted when
  viewing the Alert Rule details page.
diff: @@ -267,6 +267,7 @@ const rolebindingsStartsWith = ['rolebindings', 'clusterrolebindings'];
  const quotaStartsWith = ['resourcequotas', 'clusterresourcequotas'];
  const imagestreamsStartsWith = ['imagestreams', 'imagestreamtags'];
  const clusterSettingsStartsWith = ['settings/cluster', 'settings/ldap'];
  +const monitoringAlertsStartsWith = ['monitoring/alerts', 'monitoring/alertrules'];
  const ClusterPickerNavSection = connectToFlags(FLAGS.OPENSHIFT)(({flags}) => {
  // Hide the cluster picker on OpenShift clusters. Make sure flag detection is
  @@ -286,7 +287,7 @@ const MonitoringNavSection_ = ({urls, closeMenu}) => {
  const grafanaURL = urls[MonitoringRoutes.Grafana];
  return window.SERVER_FLAGS.prometheusBaseURL || window.SERVER_FLAGS.alertManagerBaseURL || prometheusURL || grafanaURL
  ? <NavSection text="Monitoring" icon="pficon pficon-screen">
  - {window.SERVER_FLAGS.prometheusBaseURL && <HrefLink href="/monitoring/alerts" name="Alerts" onClick={closeMenu} />}
  + {window.SERVER_FLAGS.prometheusBaseURL && <HrefLink href="/monitoring/alerts" name="Alerts" onClick={closeMenu} startsWith={monitoringAlertsStartsWith} />}
  {window.SERVER_FLAGS.alertManagerBaseURL && <HrefLink href="/monitoring/silences" name="Silences" onClick={closeMenu} />}
  {prometheusURL && <HrefLink href={prometheusURL} target="_blank" name="Metrics" onClick={closeMenu} isExternal={true} />}
  {grafanaURL && <HrefLink href={grafanaURL} target="_blank" name="Dashboards" onClick={closeMenu} isExternal={true} />}
  