Move the creating event from calendar to one place.

src/JournalEntries.tsx

@@ -51,7 +51,7 @@ class JournalEntries extends React.Component {
       let name;
       let uid;
       if (comp.name === 'vcalendar') {
-        const vevent = new EventType(comp.getFirstSubcomponent('vevent'));
+        const vevent = EventType.fromVCalendar(comp);
         name = vevent.summary;
         uid = vevent.uid;
       } else if (comp.name === 'vcard') {

src/journal-processors.tsx

@@ -50,7 +50,7 @@ export function syncEntriesToCalendarItemMap(collection: EteSync.CollectionInfo,
   const color = colorIntToHtml(collection.color);
 
   for (const syncEntry of entries) {
-    let comp = new EventType(new ICAL.Component(ICAL.parse(syncEntry.content)).getFirstSubcomponent('vevent'));
+    let comp = EventType.fromVCalendar(new ICAL.Component(ICAL.parse(syncEntry.content)));
 
     if (comp === null) {
       continue;

src/pim-types.tsx

@@ -14,6 +14,10 @@ export class EventType extends ICAL.Event {
   get end() {
       return this.endDate.toJSDate();
   }
+
+  static fromVCalendar(comp: ICAL.Component) {
+    return new EventType(comp.getFirstSubcomponent('vevent'));
+  }
 }
 
 export class ContactType {