Site manager dropdown runs off screen when using two monitors of different sizes

[eclev91]

In a dual monitor setup, Windows, if Filezilla is snapped to one side of the smaller monitor, the site manager dropdown expands to the height of the taller monitor, and therefore runs offscreen.

If you're arrow-ing down to entries, you have to arrow down several past the bottom of the screen to get the entries to scroll. This makes the bottom-most entries inaccessible.

​See it in action here. I'm using the arrow keys to advance down the list, and you see I have to go several beyond the "bottom" to actual get to the bottom and start scrolling. The arrow icon isn't even visible.