List conversations

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

{
  "data": [
    {
      "assigned_agent_id": "<string>",
      "assigned_at": "<string>",
      "channel_id": "<string>",
      "closed_at": "<string>",
      "contact_id": "<string>",
      "contact_name": "<string>",
      "contact_phone": "<string>",
      "created_at": "<string>",
      "id": "<string>",
      "last_message_at": "<string>",
      "last_message_preview": "<string>",
      "metadata": "<unknown>",
      "organization_id": "<string>",
      "status": "<string>",
      "unread_count": 123,
      "updated_at": "<string>"
    }
  ],
  "meta": {
    "has_more": true,
    "limit": 123,
    "cursor": "<string>",
    "offset": 123,
    "total": 123
  }
}