Drop Bar

The thought here is that we create some sort of navigation bar - and place it where the current -site-owned bar is at the bottom of the browser window - but give it navigation super-powers.

The first idea here is to extend the search bar so that you can copy and paste another domain and it would act as we imagine a drag-drop to act - by bringing in Fedwiki pages if the dropped site is a Fedwiki site, and by transporting them if a transporter exists, and providing an external link if the site is nt=ot know at all.