Feature Request - Set collection's background when asset_folders is set to false

[Alex1331xela]

When using asset_folders: false (where poster files are all in the base assets folder and named using the collection's name), you're unable to do the same with collection backgrounds files.

I imagine it could work by having the background file alongside the poster file, except with _background appended to the end. Example of what I mean:

assets
├── DCEU.png
├── DCEU_background.png
├── John Wick.png
├── John Wick_background.png
├── MCU.png
├── MCU_background.png
├── Star Wars.png
├── Star Wars_background.png

[meisnate12]

added in develop along with _Season## and _S##E##

[Alex1331xela]

Wow you're speedy, thanks very much!