refactor: simplify user profile rendering in Header component

app/src/components/layout/sidebarRight/Header.tsx

@@ -42,7 +42,6 @@ const Header: React.FC = () => {
               <div className="other-guest">+{guestUsers.length - 3}</div>
             )}
             {guestUsers.slice(0, 3).map((user, index) => (
-              <>
               <div
                 key={index}
                 className="user-profile"
@@ -50,7 +49,6 @@ const Header: React.FC = () => {
               >
                 {user.userName[0]}
               </div>
-              </>
             ))}
           </div>
           <div className="user-profile-container">