Currently, the dashboard cannot be resized. We're working on revisions and improvements to the dashboard layout, and each time it changes the anchors change.
In order to make resizing work properly we have to anchor each element of the dashboard. This allows them to be properly positioned when resized. Basically, it means a lot of additional work to make resizing possible.
We know a lot of orc-mashers really want this feature! Once we're satisfied with the dashboard layout you'll be able to choose a suitable size for all your orc slaying needs!