New Admin's onboarding & authentication experience

We've made a complete update to the authentication experience for admins. The most significant change is the migration from an external WorkOS process to having a full integration, which allows us to have total control over every aspect of the registration and access process. From the user's perspective, this enhances the experience by reducing errors and providing a complete flow within the Atlas platform without having to go through other services. Additionally, we've added Google social login and a clearer password recovery and change process. Also, during the account creation flow, users can now schedule a call with Atlas to receive sales support, or continue with self-onboarding and start using Atlas on their own in just a few minutes.