List form submissions

curl --request GET \
  --url https://api.oneofnone.io/v1/form-submissions \
  --header 'x-api-key: <api-key>'

{
  "data": [
    {
      "id": 123,
      "form_id": "<string>",
      "data": {},
      "created_at": "<string>",
      "user_id": "<string>",
      "collection_id": "<string>",
      "sender_name": "<string>",
      "sender_email": "<string>"
    }
  ],
  "pagination": {}
}