[otrs] QueueView v Mailbox format

I like the minimal Mailbox layout in which only "From", "To" and "Subject" are displayed, and would prefer it for QueueView too as more tickets are visible at once when looking for a particular one, or simply choosing one to work on. I hacked the code in an earlier version to achieve the effect (I don't think I even included "To"), but I haven't the stomach to keep on doing it. An option would be nice. Jim