LPS-41756 We should return portlet preferences instead of portlet setup for configuration actions. These can be different when the portlet is scoped.
LPS-41756 This is not needed. We only need different preferences for scoped portlets when the preferences are owned by the group and that case is automatically handled by PortletPreferencesFactory
LPS-41756 Fix preferences action for Currency Converter (this one is not using the new configuration framework)