Supporting korean (and boilerplates for i18n)

[JUSTIVE]

I'm supporting text highlighting in the Korean display language, also other expandable locales. (as discussed in #27 ).
This is currently working in progress, not all regexes are replaced with the proper version of its Korean alternatives yet.

[yoavbls]

Thank you for this contribution!
It looks good and I think it will be even better if the translations co-existed in the same place for every regex.
@artyom-ar suggested splitting the long chain of replacements into separate functions so we could create a unit test for each one of them.
I thought it would be nice to create functions like this one for example:

function formatReturnValues(message: string, locale: Locale = "en") {
  const regex = {
    en: /(return|operator) '(.*?)'/gi,
    ko: /(반품|연산자) '(.*?)'/gi,
  }[locale];

  return message.replaceAll(
    regex,
    (_, p1: string, p2: string) => `${p1} ${formatTypeScriptBlock("", p2)}`
  );
}

Let me know what you think
It requires a lot of changes and we're moving to a monorepo so coordinating shall be required, Do you available on Discord?

Thanks 🙂