app/components/external_links/view_more_button_component.html.erb
<button
id="<%= data_target %>Btn"
class="btn btn-primary btn-sm toggle-external-links collapsed"
type="button"
data-target="#<%= data_target %>"
data-toggle="collapse" role="button"
aria-expanded="false"
aria-controls="<%= data_target %>" />