관리자 - 시리즈 리스트 API 추가

src/main/kotlin/kr/co/vividnext/sodalive/menu/MenuRepository.kt

@@ -27,16 +27,13 @@ class MenuQueryRepositoryImpl(private val queryFactory: JPAQueryFactory) : MenuQ
             )
             .orderBy(menu.orders.asc())
             .fetch()
-            .asSequence()
             .map {
                 GetMenuResponse(
                     title = it.title,
                     route = it.route,
                     items = if (it.children.isNotEmpty()) {
                         it.children
-                            .asSequence()
                             .map { menu -> GetMenuResponse(menu.title, menu.route) }
-                            .toList()
                     } else {
                         null
                     }