message: tag plugins for updates
diff: <div class="mdc-card plugin-card">
  {{#installed}}
  <section class="mdc-card__primary">
  + {{#update}}
  + <h2 class="installed-tag mdc-card__subtitle">Update Available</h2>
  + {{/update}}
  + {{^update}}
  <h2 class="installed-tag mdc-card__subtitle">Installed</h2>
  + {{/update}}
  <h1 class="mdc-card__title mdc-card__title--large">{{description}}</h1>
  <h2 class="mdc-card__subtitle">{{name}} {{installed}}</h2>
  </section>
  