[Feature request] Grid view for artists

[jesuscc1993]

[ ] Regression 
[ ] Bug report  
[x] Feature request

Currently, the app lists the artists on a sidebar. This limits the amount shown at a time at ~20 and makes browsing extremely inefficient. It would make more sense to display them in a grid view, in the center of the screen, which is able to comfortably display 50 at once. Space aside, it would also make more sense to display them in the center as this is the artists tab and they should be the focus of the screen, contrary to the current state where the focus appears to be the albums view (and there already is a tab for albums so this is completely redundant).

For reference:

[DisasterArea96]

Might be nice too to be able to have the option for the grid view just display the artist name and no artwork at all. That could be very efficient. Also better for those of us (like me) who barely have any artwork associated with the music they listen to (most of my music doesn't come directly from an album)