fix: replaced first name, last name or email to display name (#1796)

* fix: replacing first, last name and email with display name

* fix: different endpoint for workspace & project member

* fix: falling back to email if display_name doesn't exist

apps/app/components/pages/single-page-list-item.tsx

@@ -161,7 +161,7 @@ export const SinglePageListItem: React.FC<TSingleStatProps> = ({
                     position="top-right"
                     tooltipContent={`Created by ${
                       people?.find((person) => person.member.id === page.created_by)?.member
-                        .first_name ?? ""
+                        .display_name ?? ""
                     } on ${renderLongDateFormat(`${page.created_at}`)}`}
                   >
                     <span>