enhacement: options to deal with code blocks in the markdown documents

[villares]

In my experience, code blocks/snippets/examples embedded in markdown docs have been poorly translated.
Could we try something to improve this? Maybe a flag and a strategy to skip translating code?

[SimonXIX]

I've taken a first step towards this by adding code to strip out text in code blocks and to replace it in the translated text after translation. This works for most languages although there may be some (like Portuguese) where LibreTranslate translates the placeholders that the script inserts and so never replaces the original text after translation.

[villares]

Thank you! I'll try to test it when I have the chance!
I might try to replace __PLACEHOLDER_ with __P_ to see if it helps 🥲