Don't break when parsing html in strings in a highlighted codeblock

[earlAchromatic]

For instance, this (from Notion, codeblock in a toggle) breaks the render very badly:

The culprit is here (the blocks html parser):

_mixedHTML(mixedHtml: string) {
    return mixedHtml.replaceAll(/[^<>]+?(?=<\/)/g, (match) => {
      // Must trim or Marked classifies text preceded by tabs as indented code.
      const tokens = marked.lexer(_.trim(match), this.markedOptions)
      return marked.parser(tokens, this.markedOptions)
    })

We could fix our regex or add a condition to avoid anything inside of a set of double quotes. This wouldn't be mixed html, but would just be a string representation.