Fix upload members for deleted groups

gui/src/components/uploads/EditMembersDialog.js

gui/src/components/uploads/EditMembersDialog.spec.js

gui/src/components/uploads/UploadPage.spec.js

gui/src/components/uploads/memberUtils.js

...ers-dialog-unpublished-deleted-coauthor-group-author.json

...uploadpage-unpublished-deleted-coauthor-group-member.json

.../uploadpage-unpublished-deleted-coauthor-group-owner.json

tests/states/groups.py

tests/states/uploads.py