Allow users with 'can_modify_folder' permission to delete items in libraries

[npinter]

This pull request updates the permissions logic in the library folder interface to allow users with the can_modify_folder = true permission to delete items within a library folder. Previously, only administrators could delete items from library folders, even if a user had the permission to modify the folder. This limitation prevented users who manage specific libraries from fully maintaining their content.

Specifically, it modifies the canDelete computed property so that any user who can modify a folder can also delete items inside it. In addition, I included the manage_library_role_list component in the library permissions interface, which was previously missing. This allows administrators to assign roles/accounts that can manage the library, which is required for deletion of items inside a library.

Change permission "manage" to user account via admin interface:

Delete button appears in users library:

Succesful deletion of an item:

If the user loses the add, modify and manage permission...

...all relevant buttons disappear:

How to test the changes?

• This is a refactoring of components with existing test coverage.

License

• I agree to license these and all my past contributions to the core galaxy codebase under the MIT license.