fix: admin no-order ux

src/pages/admin-page/AdminPage.tsx

@@ -67,7 +67,7 @@ const AdminPage: GFC = ({ connector }) => {
     return (
         <div className={S['container']}>
             {
-                orderList.length && orderList.map((d, i) => {
+                orderList.length ? orderList.map((d, i) => {
                     return (
                         <AdminOrderBox connector={connector} items={d.items}
                             waitingCount={d.waitingCount} takeout={d.takeout}
@@ -76,6 +76,7 @@ const AdminPage: GFC = ({ connector }) => {
                         />
                     );
                 })
+                    : <p>대기중인 주문이 없습니다</p>
             }
         </div>
     );