Create a new inbox for a team

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

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