Added a timezone selector to the Demographic Input

src/pages/profile.tsx

@@ -82,7 +82,7 @@ function UserProfile({user, mutateUser}: Props) {
 	const [commercialRegistration, setCommercialRegistration] = useState<string | undefined>(
 		user.type === "agent" ? user.agentInformation?.commercialRegistration : undefined,
 	);
-	const [timezone, setTimezone] = useState<string>(user.demographicInformation?.timezone || "UTC");
+	const [timezone, setTimezone] = useState<string>(user.demographicInformation?.timezone || moment.tz.guess());
 	const {groups} = useGroups();
 	const {users} = useUsers();