fix: 장바구니 컴포넌트가 렌더링되지 않을 수 있는 문제 수정#4

MU-Software merged 1 commit intomainpythonkr/frontend:mainfrom

fix/shop-cart-fail-on-not-initialized-cartpythonkr/frontend:fix/shop-cart-fail-on-not-initialized-cartCopy head branch name to clipboard