Export queue: quicker and easier show / hide

To make it easier to show and hide the export queue in v6:

  1. A keyboard shortcut, as you do already for the filter panel
  2. Close the panel automatically when clicking the pointer elsewhere in the UI.

Thanks.

Andy

Even better. Make it possible to have both sources and exports up at the same time (like pre v6) and add the option to completely turn off video preview with a button/key bind which shows sources and exports in its place.