This adds much better UI for selecting different profiles within a single import.  You can now hover over the middle of the toolbar or hit `t` on your keyboard to bring up the profile selector. From there, you can use fuzzy-find to switch to the profile you want, and hit "enter" to select it. The up and down arrow keys can be used while the profile selector filter input is focused to move through the list of profiles. I think the "next" and "prev" buttons are now totally useless, so I removed them. Fixes #167