Code review comment for lp:~ahayzen/music-app/now-playing-page-stack

The reason I made the back button stay visible is

a) Because the back button will move to the header as you stated
b) Because the of the way the header is shown/hidden as you scroll up/down the list it becomes really confusing with the header/back button/toolbar all appearing and disappearing. Even I, who wrote it, became confused and wondered where the back button had gone. Therefore I thought the most sane solution for the interim period until the back button lands in the header would be to make it always visible.