feat: Inline math formulas (#1600)

[andre-code]

• support inline math code between $` and `$

Project example:
https://renku-ci-ui-1622.dev.renku.ch/projects/lorenzo.cavazzi.tech/math-example

/deploy

Closes #1600

[RenkuBot]

You can access the deployment of this PR at https://renku-ci-ui-1622.dev.renku.ch

[lorenzo-cavazzi]

The inline looks good, but there are still a few problems with the formulas.
In the example you linked, the second formula is the following

$$u(\mathbf{x}) = \beta\exp\left(-\frac{1}{2}\mathbf{x}^\top\Lambda \mathbf{x} + \nu^\top \mathbf{x}\right)\phi(\mathbf{x}).$$

It's rendered correctly on GitLab

but it's not in our UI (look at the extra <=ft and right)

P.S: I'm not sure if it's easy to fix this using replace or we should rather give a look at other alternative libraries for rendering the formulas.

[andre-code]

The inline looks good, but there are still a few problems with the formulas. In the example you linked, the second formula is the following

u(\mathbf{x}) = \beta\exp\left(-\frac{1}{2}\mathbf{x}^\top\Lambda \mathbf{x} + \nu^\top \mathbf{x}\right)\phi(\mathbf{x}).

It's rendered correctly on GitLab but it's not in our UI (look at the extra <=ft and right)

P.S: I'm not sure if it's easy to fix this using replace or we should rather give a look at other alternative libraries for rendering the formulas.

Many thanks for the review @lorenzo-cavazzi
According to this information https://docs.gitlab.com/ee/user/markdown.html#math the `$ and ```math delimiters are Gitlab's own that use Latex so the error was in using ascii math instead of the Latex typesetting, with the correct configuration the formulas are rendered as expected.

[lorenzo-cavazzi]

Switching to Latex for the math block codes has worked!
All the previous errors (left) are gone and the formulas are rendered correctly (right) 🎉

Let's merge it as soon as the acceptance tests pass 🎉

[RenkuBot]

Tearing down the temporary RenkuLab deplyoment for this PR.