For arrays of objects in return values of API endpoints, any
general description of the objects in the arrays should be
documented in the description of the array. A description at the
level of the items in the array will not be rendered in the API
documentation. Descriptions of each property of the object will
be rendered, but these are specific to the property and not the
object as a whole.
Updates the pms, streams and huddles arrays of objects included
in the unread_msgs object of the register response so that the
descriptions are at the array level in the OpenAPI documentation.
ab54a3b792