app/views/application/_user_settings_tabs.html.erb
<ul class="nav nav-tabs mt-1 mb-4">
<li class="nav-item nav-item-account">
<%= link_to_account_settings_for(user) %>
</li>
<li class="nav-item nav-item-profile">
<%= link_to_profile_settings_for(user) %>
</li>
<li class="nav-item nav-item-notifications">
<%= link_to_notification_settings_for(user) %>
</li>
</ul>