message: Monitoring: Fix "Silenced" state not being shown in Active Alerts list
  The Active Alerts list (on the Rule details page) was showing "Silenced"
  alerts as "Firing".
diff: @@ -78,6 +78,12 @@ export default (state, action) => {
  a.silencedBy = _.filter(_.get(silences, 'data'), s => isSilenced(a, s));
  if (a.silencedBy.length) {
  a.state = AlertStates.Silenced;
  + // Also set the state of Alerts in `rule.alerts`
  + _.each(a.rule.alerts, ruleAlert => {
  + if (_.some(a.silencedBy, s => isSilenced(ruleAlert, s))) {
  + ruleAlert.state = AlertStates.Silenced;
  + }
  + });
  }
  });
  state = state.setIn(['monitoring', 'alerts'], alerts);
  