[Design-team] beta wallpaper for packaging

[Máirín Duffy]

Hi Martin,

Here's the quick go at a beta wallpaper for packaging today:

https://fedoraproject.org/w/uploads/7/7b/F14-beta-wallapaper.png

(source to follow, will be on the F14_Artwork page)

Just a reminder this is so we have something updated in the beta, not
necessarily going to be the final!

~m