Fix gap under options cell after dismissing blog picker.

Two things led to the gap. 
First, when dismissing the blog picker the view's frame/bounds included the height of the status bar for some reason, adding 20px to the expected minHeight. 
Second, the view did not belong to a window so the height of the toolbar was subtracted, but it should not have been. 
Combined these two issues led to a 24px deficit in the minHeight resulting in a gap.

Fixes #871.