[FEATURE] multiple edit of media and new colleciton-list view

__Tasks:__

- [x] multiple edit of medias
- [x] new collection-list view
- [ ] gather feedback for my changes
- [ ] submit changes to the documentation


__Informations:__

| Q             | A
| ------------- | ---
| Bug fix?      | no
| New feature?  | yes
| Tests pass?   | yes
| Fixed tickets | none
| Doc           | none