Continue Watching With Multiple Local Versions Fix

[SourSulfur]

Changes

• Assigned parent IDs to local alternate versions.
• Used presentation unique key instead of userdatakey when fetching resumable items.

Issues
Fixes #11118

[SourSulfur]

I'm not sure if there's a specific reason why the local alternate versions of a movie are not assigned a parent ID but assigning it does make them resumable.

If this is indeed a satisfactory change, I'm unsure if the place at which I handled this is ok. There might be a better place to handle this at and could use suggestions/feedback on this.

[cvium]

What about linked alternate versions?

[SourSulfur]

What about linked alternate versions?

I'm not sure what that is and how it's different from local alternate versions, so I'm not sure how to test its behaviour. Will have to take a look.

[jellyfin-bot]

This pull request has merge conflicts. Please resolve the conflicts so the PR can be successfully reviewed and merged.

[SourSulfur]

What about linked alternate versions?

My earlier changes did affect the behaviour of linked alternate versions. I scrapped those changes and went with a different approach - instead of setting the parent IDs for local alt versions and modifying the existing join, I just fetched the resumable local alt versions separately now

[SourSulfur]

What about linked alternate versions?

I made some changes, any chance I can get a review?

[jellyfin-bot]

This pull request has merge conflicts. Please resolve the conflicts so the PR can be successfully reviewed and merged.