[DX-2713] feat: ability to skip logging out of auth0 in the browser

[nattb8]

Summary

The SDK's current logout function performs a local logout and also opens the browser to log them out of the browser session. However, some customers might find the browser popup undesirable. To address this issue, a change has been made to allow users to skip logging out of the browser step and only perform a local logout:

• To skip the Auth0 logout and only perform a local logout, set hardLogout to false when calling Logout() or LogoutPKCE().
• To perform local and Auth0 logout, set the hardLogout parameter to true when calling the Logout() or LogoutPKCE() function. This is the default.

Customer Impact

Developers can now choose not to display the browser pop-up when logging out. However, if they choose this option, users will remain logged into Passport in the browser until the browser session expires.

e.g.

• User logs into Passport with Google Account A
• User logs out without the browser popup (hardLogout is set to false)
• User tries to log into Passport again
• If the Passport session in the browser is:
  • still valid, the user will be automatically logged in as Google Account A
  • no longer valid, the user will go through the full Passport login flow again (choose Google/Email/etc.)

Other things to consider:

• Updated public documentation with new SDK changes (Immutable X and Immutable zkEVM)