Fix wrong scopes

Description

Currently our auth lib uses a wrong scope due to the implementation of the used library. It adds a prefixed or default scope scope: ["openid", "profile", "offline_access"] to the scope passed by the options (see (node_modules/@nuxtjs/auth-next/dist/runtime.js:1612m it's constant DEFAULTS$1).

Acceptance criteria

• The scope passed via nuxt config is used by the auth lib.