fix user label when browser window is small (#610)

Author: mcanoy

src/components/engagement_data_cards/user_card/user_list.tsx

@@ -73,6 +73,7 @@ export function UserList(props: UserListProps) {
           <UserRolesTooltip />
         </>
       ),
+      dataLabel: 'Role',
       transforms: [cellWidth(10)],
     },
   ];