Allow searching natural language mode by language code and/or English name

You should be able to write 'ja' to search for Japanese for example:

![Image](https://github.com/microsoft/vscode/assets/2193314/9b20cf58-a4c3-4401-b74f-946b715619fa)



![Image](https://github.com/microsoft/vscode/assets/2193314/8dfe8fb8-7438-469d-9a55-3612124a8f81)

