Assigns a badge to site members.
The assignBadge() function returns a Promise that resolves when the specified badge is assigned to the specified members.
The badgeId parameter must be an ID from your site's Members/Badges collection. Typically, you retrieve the ID from the collection using a query or through a dataset.
You can only call this method when authenticated as a Wix app or Wix user identity.
Badge ID.
List of member IDs to assign to the badge.