Web UI: highlight resource in alerts

glances/outputs/static/html/plugins/alert.html

 <div class="table">
     <div class="table-row" ng-repeat="alert in result['alert']">
         <div class="table-cell text-left">
-{{alert.begin | date : 'yyyy-MM-dd H:mm:ss'}} ({{ alert.ongoing ? 'ongoing' : alert.duration }}) - {{alert[2]}} on {{alert[3]}} ({{alert[4]}})
+{{alert.begin | date : 'yyyy-MM-dd H:mm:ss'}} ({{ alert.ongoing ? 'ongoing' : alert.duration }}) - {{alert[2]}} on <span class="{{ alert[2] | lowercase }}">{{alert[3]}}</span> ({{alert[4]}})
 		</div>
     </div>
 </div>