Upgrading Mathjax to version 4

[sam (Sam Saffron)]

Thanks so much Mark, I went ahead and merged your commits, will have a look at the Katex thing toda

@mcmcclur

Here, by the way, is an example of mathematical proofreading via AI in this development version in action:

Is this just via a custom prompt for the proofreader persona?

@Ethsim2

Before doing so, I wanted to ask what the recommended environment is at this stage - whether early testing in a production-like setup l is appropriate, or whether you’d prefer this to be done using a development environment until the first production release.

I would not worry about it, Mark and I have this under control.