message: fix: only show dates when they are defined
diff: {{meeting.location}}
  </div>
  <div data-test-meetings-list-item-date>
  - {{moment-format meeting.startDate 'MMM DD, YYYY'}} - {{moment-format meeting.endDate 'MMM DD, YYYY'}}
  + {{if meeting.startDate (moment-format meeting.startDate 'MMM DD, YYYY')}}
  + {{if (or meeting.startDate meeting.endDate) ' - '}}
  + {{if meeting.endDate (moment-format meeting.endDate 'MMM DD, YYYY')}}
  </div>
  {{else}}
  <div data-test-meetings-list-placeholder-name>
  