[x] [2329] Scroll index in lyrics textbox

[c0der]

Hey.

When a song is loaded and the lyrics get downloaded for the first time the textbox is filled with the lyrics text and scrolls to the top. Everything fine until now.
If you play a song for which lyrics have been downloaded in the past the textbox will load the .lrc file and scroll to bottom.
It would be nice if the textbox would always scroll to top if the data in it are loaded.

Thanks in advance.