Made category hamburger a bit lighter and taller for better contrast.

Change-Id: I339a3ef21d957e7dee7781eb90f6b17ff9de88b6
Moved delete button to bottom of details slider.

This made room for moving the uploads button to the right of the navigation bar which is better as having the upload button centered made it look more like a title than an actionable item. (per Jared & Vibha)

Change-Id: I0bc19f682e6fdbe099e7864da5a8cecfdea970ce