Sort collections in media-selection overlay

__Tasks:__

- [ ] gather feedback for my changes
- [ ] submit changes to the documentation

__Informations:__

| Q             | A
| ------------- | ---
| Tests pass?   | yes
| Fixed tickets | none
| BC Breaks     | none
| Doc           | none
@dantleech fixed interface but i put it at the end! i dont want bc breaks!