message: Monitoring: Comment to explain how Alertmanager links are handled
  Now that the Alertmanager UI has been removed, the links in the alert
  messages sent by Alertmanager go to the Console. This comment explains
  how those link URLs are redirected to the default alerts list page.
diff: @@ -1799,6 +1799,8 @@ const PollerPages = () => {
  export const MonitoringUI = () => (
  <Switch>
  + {/* This redirect also handles the `/monitoring/#/alerts?...` link URLs generated by
  + Alertmanager (because the `#` is considered the end of the URL) */}
  <Redirect from="/monitoring" exact to="/monitoring/alerts" />
  <Route path="/monitoring/dashboards/:board?" exact component={MonitoringDashboardsPage} />
  <Route path="/monitoring/query-browser" exact component={QueryBrowserPage} />
  