Channel Synchronization does not respect default privacy setting

[SimplyCorbett]

Describe the current behavior

When importing a channel using the new synchronization feature it automatically puts the videos imported as public despite the instance being set to internal by default via production.yaml.

Steps to reproduce

Describe the expected behavior

No response

Additional information

• PeerTube instance:
  • URL: private
  • Version: 4.2.2...5f016383a
  • NodeJS version: 18
  • Ffmpeg version: N-62475-g130d19bf20-static

[Chocobozzz]

We would also need a proper select in sync form to set the default video channel. This select would default to the value defined in production.yaml