Restore public sharing for non-Trakt users

Following the update to V3, the feature to share movies, television shows, and lists with friends is no longer available. As a VIP user, I view this change as a major regression from V2. Outside of basic tracking, sharing recommendations and watchlists based on my ratings was my primary use case for Trakt. This restriction appears to be an effort to drive new account registrations. However, the individuals I share these links with are unlikely to create accounts, as they prefer using standard alternatives like IMDb for casual browsing.