Add missing element mapper and allow deleting element types with active elements#21483

kjac merged 4 commits intov17/feature/global-elementsumbraco/Umbraco-CMS:v17/feature/global-elementsfrom

v17/feature/global-elements-delete-element-typeumbraco/Umbraco-CMS:v17/feature/global-elements-delete-element-typeCopy head branch name to clipboard