{% load i18n %}

<p>
  {% blocktranslate count count=unassigned %}One screenshot has no string assigned to it.{% plural %}{{ count }} screenshots have no string assigned to them.{% endblocktranslate %}
</p>

{% if screenshot_id %}
  {% url "screenshot" pk=screenshot_id as screenshot_url %}
{% else %}
  {% url "screenshots" path=component.get_url_path as screenshot_url %}
{% endif %}
<a class="btn btn-primary"
   href="{{ screenshot_url }}{% if not screenshot_id %}?q={{ "NOT has:string"|urlencode }}{% endif %}">{% translate "Manage screenshots" %}</a>