Explain better how to integrate with auth services like Auth0

[NickSeagull]

Documentation bug, improvement

Description

It is not clear how to integrate with auth services. So, for example, for Auth0:

1. Document the process for integrating Auth0 with the Booster project for user authentication. This should include information on how to authenticate a user using their email and password via Auth0, and how to generate and attach a token to the Authorization Bearer header.

2. Create an example code snippet demonstrating how to implement the Auth0 authentication process in a login function.

3. Document how to retrieve the currently authenticated user across different commands and read models in the Booster project when using Auth0 as the authentication provider.

4. Create an example code snippet demonstrating how to retrieve the current authenticated user in different commands and read models when using Auth0.

5. Update the project's documentation to include the new information and examples on integrating Auth0 with the Booster project.

[ZDerekh]

@NickSeagull Would you be able to create a guide on this? Auth0 has plenty of guides, but it would be great to have documentation specifically on how to handle client-side booster authorization with Auth0.