cannot allow/skip unsupported highlighting languages

[OmarTawfik]

Users can author code blocks in the docs, which might not be supported by typedoc. This is still a valid use case, because it can be used with typedoc-plugin-markdown, which will write the language-ID as-is to the markdown, to be highlighted by something other than shiki (for example mkdocs).

Search terms

highlight language add ignore

Expected Behavior

Perhaps adding an option like ignoreLanguages next to the existing highlightLanguages, to allow using these other languages. For shiki, it would remain unhighlighted.

Actual Behavior

Without such flag, users are not able to set the correct language-ID, and are blocked from using other systems/markdown plugins.

[Gerrit0]

PR welcome

[Gerrit0]

I decided to call the option ignoredHighlightLanguages to more closely match highlightLanguages