mod_conversejs: Make PWA options match documentation Keeps fallback to `name` because this is a common option used by e.g. mod_disco to give a descriptive name for the server itself, which seems a sensible default.

<tr>
  <td colspan="2">
    <script src="https://hcaptcha.com/1/api.js" async defer></script>
    <div class="h-captcha" data-sitekey="{captcha_public_key}"></div>
  </td>
</tr>