refactor the use of plain string order types

src/components/PaymentMethods/PaymentMethods.tsx

@@ -13,6 +13,7 @@ import { useAppDispatch, useAppSelector } from "redux/hooks";
 import { colors, ProGray1 } from "../../ThemeConstants";
 import ProInputCard from "../ProInputCard/ProInputCard";
 import styles from "./PaymentMethods.module.css";
+import { OrderType } from "pages/checkout/hooks/types.ts";
 
 const PaymentMethods = () => {
   const { t } = useTranslation();
@@ -28,7 +29,7 @@ const PaymentMethods = () => {
     style?: React.CSSProperties;
     hideCurrency?: boolean;
   }[] = [
-    ...(orderType !== "gift"
+    ...(orderType !== OrderType.Gift
       ? [
           {
             label: t("checkout.cash"),