Fade transition between album background images while in fullscreen player mode

[Suoslex]

What do you want to be added?

Now the transition of background album images between two different tracks is abrupt: it just changes one image to another, but it would be much better if it gradually faded from one image to another.

Additional context

No response

Is this a server-specific feature? (e.g. Jellyfin only)

• [ ] Yes

[github-actions[bot]]

This issue has been automatically marked as stale because it has not had recent activity. The resources of the Feishin team are limited, and so we are asking for your help. If this is a bug and you can still reproduce this error on the development branch, please reply with all of the information you have about it in order to keep the issue open. This issue will automatically be closed in the near future if no further activity occurs. Thank you for all your contributions.