Navigation Block: highlight items missing a URL

[mtias]

In the navigation menu block, it's possible to have a menu item without a URL set. There's nothing in the UI that indicates a menu doesn't have a link set.

It'd be great to indicate that — could be as simple as a red bottom border on the item.

Likewise in this view, the link item in the toolbar looks the same way whether there's a URL set or not.

cc @shaunandrews @karmatosed

[retrofox]

It'd be great to indicate that — could be as simple as a red bottom border on the item.

Wondering what happens when the bgc is red? 😆

What do you think about setting the same color as the item link?