Add missing font to prevent generation failure

[airbundle] / Resources / views / calendar / index.html.twig

{% extends '@RapsysAir/body.html.twig' %}
{% block content %}
        <section id="form">
                <header>
                        <h2><a href="{{ path('rapsys_air_calendar') }}">{{ section }}</a></h2>
                        <p>{{ description }}</p>
                </header>
                {{ form_start(form) }}
                        <div>
                                {{ form_row(form.calendar) }}

                                {{ form_row(form.prefix) }}

                                {{ form_row(form.project) }}

                                {{ form_row(form.client) }}

                                {{ form_row(form.secret) }}

                                {{ form_row(form.submit) }}
                        </div>

                        {# Render CSRF token etc .#}
                        <footer style="display:none">{{ form_rest(form) }}</footer>
                {{ form_end(form) }}
        </section>
{% endblock %}