Bugfix/tex

[DNA386]

actual fix for #76 (comment)

Tex rendering is now deferred and fully controlled by mathjax-content component to avoid leakage.
This can be demoed by first building the code and serving it locally:

npm run parser
npm run build-lib
serve .

Then navigate to http://localhost:3000/test/test_mjx_rendering. It should look like this:

(This replicates the initial html generated by pytket)

Note that this issue won't be noticeable in storybook as mathjax is usually loaded before the circuit data as it is all done dynamically.

[CalMacCQ]

Thanks. The html thats served locally looks good.

Happy to help with further testing if need be.