Added keyboard shortcuts to the mod queue

Keyboard shortcuts do make like more easy, would it be possible to add some keyboard shortcuts to the mod queue? Nothing fancy, just a few simple ones.

U to select the first flag in the queue K to go to the previous flag in the mod queue J to go to the next flag in the mod queue

and then, the left hand buttons for handling itself. For example, on a NAA flag

A for converting to comment W for no further action, highlighting the text (can Tab and then Enter to submit, anyway) D for deleting (wow, coincidence D for delete)

Handling the decline reasons might need additional ones (perhaps numbers?), but that is probably not worth the effort.