manager/ui/templates/layout.html.twig

{% extends "base.html.twig" %}
{%- block css %}
    <link href="/assets/node_modules/bootstrap/dist/css/bootstrap.min.css" rel="stylesheet">
{% endblock -%}
{%- block js %}
    <script src="/assets/node_modules/bootstrap/dist/js/bootstrap.bundle.min.js"></script>
    <script src="/assets/node_modules/@popperjs/core/dist/umd/popper.min.js"></script>
{% endblock -%}
{%- block body %}
    <div class="container">
        <div class="row">
            <div class="col-2">
                {%- block left -%}{% endblock -%}
            </div>
            <div class="col-8">
                {%- block middle -%}{% endblock -%}
            </div>
            <div class="col-2">
                {%- block right -%}{% endblock -%}
            </div>
        </div>
    </div>
{% endblock -%}