adding cashapppay story (#2963)

packages/lib/storybook/stories/wallets/CashAppPay.stories.tsx

@@ -0,0 +1,24 @@
+import { MetaConfiguration, StoryConfiguration } from '../types';
+import { ComponentContainer } from '../ComponentContainer';
+import { CashAppPayConfiguration } from '../../../src/components/CashAppPay/types';
+import CashAppPay from '../../../src/components/CashAppPay/CashAppPay';
+import { Checkout } from '../Checkout';
+
+type CashAppPayStory = StoryConfiguration<CashAppPayConfiguration>;
+
+const meta: MetaConfiguration<CashAppPayConfiguration> = {
+    title: 'Wallets/CashAppPay'
+};
+
+export const Default: CashAppPayStory = {
+    render: ({ componentConfiguration, ...checkoutConfig }) => (
+        <Checkout checkoutConfig={checkoutConfig}>
+            {checkout => <ComponentContainer element={new CashAppPay(checkout, componentConfiguration)} />}
+        </Checkout>
+    ),
+    args: {
+        countryCode: 'US'
+    }
+};
+
+export default meta;