muser-8.x-1.x-dev/modules/custom/muser_user/templates/muser-user-menu.html.twig

<nav role="navigation" aria-labelledby="{{ nav.label_id }}" id="{{ nav.id }}">
    <h2 class="visually-hidden" id="{{ nav.label_id }}">{{ nav.label }}</h2>
    <ul class="menu">
        {% for menu_item in menu_items %}
        <li class="menu-item {{ menu_item.classes }}">
            {{ menu_item.link }}
            {% if menu_item.children %}
            <ul class="menu">
                {% for link in menu_item.children %}
                <li class="menu-item">
                    {{ link }}
                </li>
                {% endfor %}
            </ul>
            {% endif %}
        </li>
        {% endfor %}
    </ul>
</nav>