Fixed error +warning in UI

Error - didn't use deep copy and caused error
Warning - 2 events might have the same timestamp

monkey/monkey_island/cc/ui/src/components/report-components/zerotrust/EventsTimeline.js

@@ -15,10 +15,10 @@ export default class EventsTimeline extends Component {
       <div>
         <Timeline>
           {
-            this.props.events.map(event => {
+            this.props.events.map((event, index) => {
               const event_time = new Date(event.timestamp['$date']).toString();
               return (<TimelineEvent
-                key={event.timestamp['$date']}
+                key={index}
                 createdAt={event_time}
                 title={event.title}
                 icon={<i className={eventTypeToIcon[event.event_type]} />}>

monkey/monkey_island/cc/ui/src/components/report-components/zerotrust/PillarOverview.js

@@ -21,7 +21,7 @@ const columns = [
 class PillarOverview extends Component {
   render() {
     const data = this.props.grades.map((grade) => {
-      const newGrade = grade;
+      const newGrade = JSON.parse(JSON.stringify(grade));
       newGrade.pillar = {name: grade.pillar, status: this.props.pillarsToStatuses[grade.pillar]};
       return newGrade;
     });