message: Don't show counters if they are zero
diff: <div class={{concat "cardstack-workflow-label-with-count-wrapper " (if (eq selectedGroup groupId) "active")}}>
  <div class={{concat "cardstack-workflow-label-with-count " tagGroup.priorityLevel "-priority"}} onclick={{action 'selectTag' tagId}}>
  <div class='name'>{{tagGroup.name}}</div>
  + {{#if tagGroup.unhandled.length}}
  <div class="count" data-test-group-counter={{groupId}}>{{tagGroup.unhandled.length}}</div>
  + {{/if}}
  </div>
  </div>
  {{/with}}
  