Display only first page of search results by default for each section and
allow clicking on the section header to view all the results for a given
section. This design will allow us to easily move from paging to scrolling
without having to stack multiple scrollbars in a single pane.
Display a total results count next to the section name. This serves as an
indicator that there are more results. The section header pre-lights to
indicate that it can be clicked on.
Make sure we go back to the first page of results when we exit a single
section mode. Make sure we re-instate all result sections if the search
mode is left.
Close the only section search mode on Esc, and only close the search
when Esc is hit again.