hehe/user/plugins/admin/themes/grav/templates/partials/nav-user-details.html.twig

<div id="offline-status">
    <span><i class="fa fa-fw fa-plane"></i> You are offline</span>
</div>
<div id="admin-user-details">
    <a href="{{ base_url_relative }}/user/{{ admin.user.username|e }}">
        {% include 'partials/nav-user-avatar.html.twig' %}

        <div class="admin-user-names">
            <h4>{{ admin.user.fullname|e }} {% if admin.user.twofa_enabled %}<span class="badge">2FA</span>{% endif %}</h4>
            <h5>{{ admin.user.title|e }}</h5>
        </div>
    </a>
</div>