List media assets

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

{
  "data": [
    {
      "asset_id": "<string>",
      "asset_key": "<string>",
      "file_name": "<string>",
      "last_modified": "<string>",
      "media_kind": "<string>",
      "media_url": "<string>",
      "size_bytes": 123,
      "content_type": "<string>"
    }
  ],
  "meta": {}
}