Escape button shouldn't be a list item

[BryceStevenWilley]

Currently, the escape button shows up in the nav bar as a list item (<li>), not in any surrounding HTML list. This is generally an accessibility issue, as screen readers don't know how to handle list items just hanging around like that, and also has the default bullet, visible with different nav bar background colors (seen below).

Easy fix should be simple; just make a div instead of an li. There might be better HTML for that, but not sure of it off the top of my head.