Add key to options on create order

src/order/CreateOrder.js

@@ -42,7 +42,7 @@ function CreateOrder() {
   };
 
   const orderOptions = prevOrders
-    ? prevOrders.map((o) => <option>{o.name}</option>)
+    ? prevOrders.map((o) => <option key={o.name}>{o.name}</option>)
     : "";
 
   return (