[BUG] Thumbnails used for conventional TOC, contrary to IIIF Presentation API v3.0

[triplingual]

Describe the bug
Ramp generates a conventional TOC when given a Manifest containing a Range that has a property of behavior whose value is thumbnail-nav, contrary to the IIIF Presentation API v3.0.

To Reproduce

1. Use the Manifest at https://api.npoint.io/4907639d2fc4d3c0f33b locally (see Additional context below) in a Ramp URI such as https://ramp.avalonmediasystem.org/?iiif-content=http://localhost:4000/recipe/0229-behavior-ranges/manifest.json
2. See the Sections area of the Ramp GUI. Screenshot below shows what it looks like for me.

Expected behavior
When thumbnail-nav is the value of a behavior property in a Range, "Clients SHOULD NOT use them to generate a conventional table of contents." (IIIF Presentation 3.0 API, need to scroll down a bit from there.) IIIF Presentation API 3.0 does not specify deterministically what should happen, but does suggest using the thumbnails along a timeline for a video, in the manner of thumbnail scrubbing.

Screenshots

Desktop

• OS: MacOS 14.1.2
• Browser: All
• Version: All

Additional context
The branch is not building in our IIIF Cookbook repository, so there is no remote location for pointing to a manifest that will have IIIF-hosted URIs for all dynamic content. For the time being it needs to be downloaded and run locally.