Contents navigation for multiple AV files on multiple canvases not supported

[jamesmisson]

I'm submitting a:

• bug report => please fork one of these codesandbox examples with a repro of your issue and include a link to it below
• feature request => please use the user stories repo
• support request => Please do not submit support requests here, use stackoverflow

Current behavior:
While reviewing UV v4's behaviour with the IIIF cookbook recipes, some problems were found with the 'Table of Contents for Multiple A/V Files on Multiple Canvases' cookbook. The contents in the index panel appears, but does not allow for navigation between AV files. The title heading changes, but the video content remains the same.

Expected behavior:
The viewer should start playing the video file or video range corresponding to the clicked label in the index panel.

Steps to reproduce:

Open the cookbook manifest in the most recent version of UV here: https://www.universalviewer.dev/#?xywh=-2230%2C-626%2C7028%2C4794&iiifManifestId=https%3A%2F%2Fiiif.io%2Fapi%2Fcookbook%2Frecipe%2F0065-opera-multiple-canvases%2Fmanifest.json

Open the 'index' panel on the left. Click between sections. Video does not respond.