List conversations

curl --request GET \
  --url https://app.flowella.io/api/v1/conversations \
  --header 'Authorization: Bearer <token>'

{
  "items": [
    {
      "id": "<string>",
      "status": "<string>",
      "createdAt": "2023-11-07T05:31:56Z",
      "whatsappChannelId": "<string>",
      "contact": {
        "id": "<string>",
        "phone": "<string>",
        "name": "<string>",
        "waId": "<string>"
      },
      "lastMessageAt": "2023-11-07T05:31:56Z"
    }
  ],
  "nextCursor": "<string>"
}