feat: Added Latex Support

[Ahmahsamara17]

added MathJax to base.html so that challenge descriptions and pages in Dojo can display LaTeX math expressions properly instead of raw $...$ text.

[ConnorNelson]

<script>
  window.MathJax = {
    tex: { inlineMath: [['$','$'], ['\\(','\\)']], displayMath: [['$$','$$'], ['\\[','\\]']] },
    options: {
      ignoreHtmlClass: ".*",         // ignore everything
      processHtmlClass: "math"       // but DO process inside .math
    }
  };
</script>
<script async src="https://cdn.jsdelivr.net/npm/mathjax@3/es5/tex-chtml.js"></script>

I think an opt in approach like this would make more sense, so we don’t suddenly start doing weird things with $. We would also need to update the markdown render whitelist to allow the math class through.

[zardus]

👀