List checkout elements

curl --request GET \
  --url https://api.fungies.io/v0/elements/checkout/list \
  --header 'x-fngs-public-key: <api-key>'

{
  "status": "<string>",
  "data": {
    "checkoutElements": [
      {
        "object": "checkoutElement",
        "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
        "name": null,
        "status": "ACTIVE",
        "subscriptionOffer": false,
        "offers": [
          {
            "object": "offer",
            "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
            "internalId": null
          }
        ]
      }
    ],
    "count": 0
  }
}