Finish the artist page

[jerelmiller]

Much of the artist page is implemented, however there is still some missing functionality

Tasks

Beta Give feedback

1. Top tracks should show whether they are liked by the user (i.e. the heart icon)
2. Double clicking on a track should start playing that track
3. Add context menu for the top tracks
4. Add context menu for each album tile
5. Add context menu for related artists
6. Add the ability to follow/unfollow the artist