Ability to add cover images to collections

[gavinmcfall]

As it stands you are able to add an image as the preview file. This is nice because the page loads faster as its not trying to render a 3D object, which is important when you have a large library.

It would be great if this could also be done for a collection

[gavinmcfall]

Now that I am starting to next collections this would be more useful as I have collections like this

• Movies

  • Marvel
  • Deadpool
  • Xmen
  • DC
  • Batman

  Those higher level collections just have black previews