auth0 login should respect the --domain flag for personal credentials login

[davidharrigan]

Checklist

• I agree to the terms within the Auth0 Code of Conduct.

Describe the problem you'd like to have solved

My Auth0 account has many tenants. Selecting the correct tenant from the authorization consent UI is doable, but would be nice if the auth0 login --domain <tenant domain> worked for the device code flow login.

Describe the ideal solution

When --domain flag is provided for the device code login flow, the correct tenant is selected without having to search for it in the UI.

Alternatives and current workarounds

No response

Additional context

I believe this would work if we can pass the --domain value to the audience field here:

auth0-cli/internal/auth/auth.go

Line 153 in 54e9a30

"audience": []string{a.Audience},

instead of using the hardcoded wildcard audience defined here:

auth0-cli/internal/auth/auth.go

Line 53 in 54e9a30

Audience: "https://*.auth0.com/api/v2/",