[SDK-2586] Add user to withPageAuthRequiredProps CSR to match SSR

[adamjmcgrath]

Description

Add user to withPageAuthRequiredProps CSR to match SSR.

withPageAuthRequired(({ user }) => <div>{ user.name }</div>)

Also fixes the example at https://github.com/auth0/nextjs-auth0/blob/main/EXAMPLES.md#protecting-a-client-side-rendered-csr-page

References

fixes #403

Testing

• This change adds test coverage for new/changed/fixed functionality

Checklist

• I have added documentation for new/changed functionality in this PR or in auth0.com/docs
• All active GitHub checks for tests, formatting, and security are passing
• The correct base branch is being used, if not main

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