[TECHNICAL SUPPORT] LPS-33236 Delete button on Asset Category Admin doesn't support partial removal of categories or vocabularies

Hi,

* The service layer (AssetCategoryService and AssetVocabularyService) has been changed and method deleteCategories and deleteVocabularies returns an array of IDs of those items which could not be deleted.

* The UI has been also altered to interpret the newly created interface back-end correctly.

Cheers,
Laci.