message: add click handler
diff: v-app-tooltip="$gettext('View Comments')"
  />
  - <span class="blip" v-if="commentsCount > 0">
  + <span class="blip" v-if="commentsCount > 0" @click="openComments()">
  <span class="blip-caret"></span>
  <span class="blip-count">
  {{ commentsCount | number }}
  