Default Behaviour

When a user signs in for the first time, Wasp creates a new user account and links it to the chosen auth provider account for future logins.

Also, if the userEntity has:

• A username field: Wasp sets it to a random username (e.g. nice-blue-horse-14357).
• A password field: Wasp sets it to a random string.

This is a historical coupling between auth methods we plan to remove in the future.

<!-- This snippet is used in overview.md, google.md and github.md -->