Starting realm overview page.
Made navbar respond to the currently viewed realm.

TODO: Add navbar to homepage.
Renamed a function (get-characters -> character-row) that tripped me up every time I skimmed the file.
Moved realm-based routes into their own defroute.
Limited item listings to cheapest 200 b/c it keeps the browser from having a fit.
Bunch of in-flight changes. Added beginning of character page.