refactor(dlcm-portal): refactor oauth2 service

src/app/app.component.ts

src/app/app.module.ts

src/app/auth.config.ts

src/app/core/auth/auth.config.ts

src/app/core/auth/oauth-module.config.ts

src/app/core/auth/oauth2.service.ts

src/app/core/auth/types.ts

src/app/core/config/app-config.service.ts

src/app/core/http/oauth2-interceptor.service.ts

src/app/shared/components/paginator/paginator.component.ts

src/app/stores/app.state.ts

src/environments/environment.defaults.ts

src/environments/environment.prod.ts