Localized intellisense, what's the story now?

### Describe the issue or suggestion

We're archiving the existing content because the product team no longer ships localized intellisense (which stopped a long time ago): #47676

But what is the current story? Is this something we want to document?

I pinged the internal discussion to see if I could get some information.

@mairaw

I found this blog post which is related to localizing intellisense: https://www.cnblogs.com/Misaka11639/articles/18130537