Should `Chart2Music` is bundled in plotly.js or loaded as a separate script?

#6680 adds options to use `Chart2Music` for accessibility feature.
What we should do in terms of loading the library?
Should it be included in the plotly.js bundle similar to `maplibre-gl`?
Or do we want to load it as a separate script similar to `MathJax`?

Also wondering if `MathJax` is loaded in app studio?