Describe the bug

Clicking on the markdown mode cell button transforms the literal \n to a breakline

changing back

Environment

0.3.4

Code to reproduce

mo.md(
    r"""
    Some people denote Poisson's ratio as $n$, $\nu$, or even $\mathllap{}\cdot\mathllap{\alpha}$
    """
)

Breaks on the \nu

try it here:
https://marimo.app/l/z5epex