Add the webclient properties added for external oAuth2 integration to the config wizard

The following properties need to be added to the config wizard so they are configurable when setting up the web client:
1. SM_UI_AUTH_ENABLE_PROVIDER_LOGOUT
2. SM_UI_AUTH_LOGOUT_URI

Start by locating the config wizard and the web-client setup path in the repository. Trace how existing web-client properties are exposed, then add SM_UI_AUTH_ENABLE_PROVIDER_LOGOUT and SM_UI_AUTH_LOGOUT_URI so both can be configured during setup. Done means the wizard accepts and persists both properties.

Written by the indexing model from the issue text.