qt: Non uniformity of UI in terms of sort criteria

At the following places, the sorting is available according to the thumbnail as well as according to the Title/Name:

• in All, Playlists views of the Video tab
• in the Genres, Playlists views of the Music tab
• in the My Folders, My Machine portions of the Browse tab

Whereas, in these places, the thumbnail as well as the Title/Name are clubbed together as a single sort criteria:

• in the Artists, Albums, Tracks views of the Music tab
• in the All Albums view of Artists view
• in the grid expand delegate of Albums

*Proposal:*
*We shouldn't be able to sort content based on the thumbnail, as sorting according to the thumbnail doesn't make sense, right ?*

I'd like to work on this issue.