Optionally sync Blacklist with "Import List Exclusions" in Radarr and Sonarr

[nupulu]

Description

My use case for the blacklist feature is to mark media I have considered and that I don't want to request. Media marked as not-to-be-requested should not be proposed by Radarr/Sonarr using the Import List feature. To achieve this, blacklisted movies should be in sync with the Radarr Import List Exclusions (likewise for blacklisted shows and Sonarr Import List Exclusions).

Desired Behavior

The blacklist for movies should be synced with the Radarr Import List Exclusions list.
The blacklist for shows should be synced with the Sonarr Import List Exclusions list.

Additional Context

No response

Code of Conduct

• I agree to follow Jellyseerr's Code of Conduct

[gauthier-th]

Related to sct/overseerr#3941