Support code highlighting in snippets

[gmile]

Right now, when the post contains code, the code highlighting is broken. Here's an example upon test export from motion-canvas server:

It would be fantastic if the code highlighting worked for html.

[prathercc]

I’ll try to have this fixed on the next release 👍

[gmile]

One small thing somewhat related to code highlighting: perhaps the inline code, e.g. surrounded with ticks, could use one of system default monospace fonts 🤔

Here's screenshot with example of this - the text in surrounded with ticks is not monospaced: