Make the DND icon look a little less completely broken.

Screenshot: https://screenshot.googleplex.com/6CzRvLUcRDRt9uj.png

I don't even have mocks for this, I'll ask UX for what this should actually look like, but it's better than being offset behind and to the right of the row like it is now.

Fixes: 192080118
Test: use dnd
Change-Id: I6b1d03547a3711f48fb7a0e84c1c7ed8929f20ea