Restore work profile widgets on hub

- Delay restore widgets until user setup is complete
- Skip work profile widgets if work profile is not set up
- Manually bind work profile widgets if work profile is set up

Test: atest CommunalBackupRestoreStartableTest
Test: atest CommunalWidgetRepositoryImplTest
Test: build & flash and verified work profile widgets restored
Bug: 330945203
Flag: com.android.systemui.communal_hub
Change-Id: Ie6483de119cfe7dbd760cb79862046ce49aaeca4