Add row of navigation buttons above both local and remote listings

[Jay Smith]

It would be massively useful to have a row of navigation buttons above side of the listings.

These would include, but perhaps not be limited to: Up, Back, Up-To-Root-Of-Listing (i.e. the FZ entry point for this session, not the root of the folder/directory structure), Refresh.

Often I have listings on each side that are hundreds of files long. I have gone most of the way down one or both sides. To get back to the top or to the containing folder/directory, I have to slide up or page up or something on each side. When using many times a day, it adds up to a lot of unnecesssary mousing around.