Added shortcut keys

This make sure that you can get through a majority of the flow without
using the mouse. However, you still have to click on a button to get to
the search page. Hopefully, we can come up with a better flow the next
time around.

-:s now takes you to the settings page
-We clear the search text if you navigate using :s but keep the text
otherwise
-Set focus on the first textbox whenever navigating to the settings page
-Pressing enter on the "you get" box adds the shortcut