Fix arrow key navigation of folders in Metadata viewer

Used to be able to accurately move across directories with arrow and modifier keys, now navigation is broken. Moving between directories with the arrow keys either doesn't work for a dozen button presses, or resets several folders to the left when trying to navigate one to the right. Also please make it so the info panel remembers which pane i have open/collapsed instead of starting me in a reset view each time i open the pane.