bulma (input/field): don't use kwargs anymore: `**kwargs` syntax is not supported by `nunjucks`. To work around this, most important arguments have been added directly to macros, and an extra `attrs` argument can be used for others.

{% extends 'error/base.html' %}

{% block body %}
<h1>{% trans %}Unauthorized{% endtrans %}</h1>
<p>{% trans %}Sorry, you are not authorized to access this page. An authentication is needed.{% endtrans %}</p>
{% endblock body %}