fix(mod): thx copilot-모달창 닫히게

Author: halionaz

src/features/my/components/MyTrade/DeleteAccountButton.tsx

@@ -17,6 +17,7 @@ const DeleteAccountButton = () => {
         openToast({ message: '회원탈퇴 완료!' });
       },
     });
+    setShowDeleteAlert(false);
   };
 
   return (