Communal - expose users that are disallowed by work profile to picker.

Bug: 330377706
Test: TestDPC set WP to disallow widgets, check picker doesn't show them.
      atest CommunalSettingsInteractorTest
Flag: com.android.systemui.communal_hub
Change-Id: Idf177a7bb4b8331b8389ec1711f9f5fd188b516b