Main menu links are expanded even when their children are not accessible by current user.

[darkodevubc]

Steps to reproduce

1. Create a parent node and menu item
2. Create a child node and menu item
3. Unpubilsh the child node

Symptom
Visit the site as anon
Parent menu gets the dropdown button when it shouldn't, since the child is not accessible

Fix
Before rendering the dropdown button in menu--main.html.twig, check for children with item.below:

{% if item.below %} <button class="btn dropdown-toggle" data-toggle="dropdown"><span class="ubc7-arrow blue down-arrow"></span> </button> {% endif %}

[darkodevubc]

I won't create a PR for this unless it's deemed worthy at the Galactus level. Until then, I've implemented this in our custom CLF theme by copying Galactus menu--main.html.twig and making the change.

[occupant]

Oh, nice catch. I'll get that one in there for sure.