pinafore/routes/_components/status/StatusSidebar.html

<Avatar account={{status.account}}
        className="status-sidebar"
        size="{{isStatusInOwnThread ? 'medium' : 'small'}}" />
<style>
  :global(.status-sidebar) {
    grid-area: sidebar;
    margin-right: 10px;
  }
</style>
<script>
  import Avatar from '../Avatar.html'
  export default {
    components: {
      Avatar
    }
  }
</script>