Row sort icon should be closer to the text of the column you're sorting

[derekmoyes]

It's a bit confusing that the row sort icon is very far away from the header text of the row, especially given that some rows, like Source and Output are very wide. Currently, their sort icons are much closer to Check Name and Count.

It seems like it would make more sense for the row sort icon to be closer to the row header text that it controls, maybe directly to the right of the header text.