[Feature Request] Add alphabetic sorting when searching for Artist instead of song title

[8fuhst]

Currently when searching for an Artist, the results are not necessarily shown in alphabetical order for song titles. This might be a nice addition though.

Its important to consider not to simply order any search result, as that might put direct hits later in the pagination. Sorting should only occur when searching for an artist.

[8fuhst]

fixed together with #13, apparently it was the same fix

[8fuhst]

Not fixed in production