Feature Request: Screen edge snapping

[catthou]

While trying to set up my Candy bars, I'm finding it very difficult to get them to align with the edge of the screen, especially in the corners. There seems to be some kind of snapping, but it's not generous enough for me to be sure the elements are actually snapping edge-to-edge. Sometimes it feels like I just dragged it into exactly the right spot accidentally. I think it'd be very useful to provide automatic docking to the edges and corners of the screen in order to elimate small pixel gaps.

It may also be beneficial to dock Candy bars that are dragged partially off screen in any one direction; this would make it easy to align your Candy bars to the edge of the screen even without another form of easy docking.