UI should keep tabs & active tab in same place b/w pages

[endtwist]

When the user reloads/changes pages, the UI should try to restore the tabs to both the same order and place the active tab in the same location it was on the prior page.

Ideally, this could be done by checking the list of tabs and finding the position of the active one, as well as whether or not it is visible (and if so, at what position/index it is in the visible tabs).