Unable to render block math equation when **typing**

[RayLei]

Description

When typing block math equations, the auto-completion produces 3 $ at the end. Marktext can't recognise the block equation, even after I delete the last extra $. However, when I copy the block math formula from the doc, it renders perfectly.

• [x] Can you reproduce the issue?

Steps to reproduce

1. Type $$m=n $$,
2. When typing the 2nd $ at the end. 3 $ occurs.
3. Even after deleting the extra $, it can't render the equation correctly.

Versions

• MarkText version: v0.17.1
• Operating system: Windows 11