bug: Markdown inside LaTeX blocks should *not* be rendered

[henrysheehy]

Did you check existing issues?

• I have read all the tree-sitter docs if it relates to using the parser
• I have searched the existing issues

Tree-Sitter CLI Version, if relevant (output of tree-sitter --version)

No response

Describe the bug

LaTeX blocks' equals sign are rendered as headings.

Steps To Reproduce/Bad Parse Tree

Consider

Embed it into the full Hilbert space as:
$$
\widetilde{𝖲}_{𝛅} 
=
\left(𝖲_{𝛅}^{(𝐍,\text{bc})}/𝖬\right)
\otimes
I_{\text{int}}
\otimes
I_{\text{spin}}
\otimes
I_{\text{Nambu}}.
$$

The $=$ symbol on its own line causes highlighting of the above lines as markdown headings. Similarly with $-$. $*$ and $+$ cause bullets to appear.

Expected Behavior/Parse Tree

LaTeX blocks should not have markdown rendering occurring inside them.

Repro

No response