add track info and links

[petitminion]

In the track playeur, Could be nice to see some info about the track as :

• Url origin
• Bit rate

And some links :

• download track
• link to artist album (by clicking on artist name)
• link to tracks of album (by clicking on album name)

Thx a lot for your work ! The app is amazing o/

[apognu]

This commit should provide most requested information. I did not implement track download, as this is a standalone feature that will be a bit more involved and I will implement separately.

[petitminion]

Thanks a lot ! :)