Create new inboxes and users for a team

curl --request POST \
  --url https://partners.clerk.chat/reseller/teams/{teamId}/inboxes/bulk \
  --header 'Content-Type: application/json' \
  --data '{
  "inboxes": [
    {
      "name": "<string>",
      "phone": "<string>",
      "email": "jsmith@example.com",
      "externalId": "<string>"
    }
  ]
}'

{
  "inboxes": [
    {
      "id": "<string>",
      "phone": "<string>",
      "externalId": "<string>",
      "created": "2023-11-07T05:31:56Z",
      "updated": "2023-11-07T05:31:56Z"
    }
  ]
}