add the option to mark users as deleted instead of actually deleting them from the db#672

crosspolar wants to merge 62 commits intomasterSuperCoopBerlin/tapir:masterfrom

328-add-the-option-to-mark-users-as-deleted-instead-of-actually-deleting-them-from-the-dbSuperCoopBerlin/tapir:328-add-the-option-to-mark-users-as-deleted-instead-of-actually-deleting-them-from-the-dbCopy head branch name to clipboard