Add l10n support to Code Runner

Hi, Code Runner is a very useful VSCode extension that many of my friends use. Thank you for developing such a useful extension.
But, it only provides an English interface and configuration options. Adding localization support can improve the usability of this extension for developers whose native language is not English. So, I suggest adding l10n support to this extension.

Starting from VSCode version 1.73.0, VSCode introduced the l10n API. We can use it directly.

If you think adding l10n support is ok, I am willing to work on it.

### Also see
[VSCode doc about l10n](https://code.visualstudio.com/api/references/vscode-api#l10n)
[VSCode l10n GitHub repo](https://github.com/microsoft/vscode-l10n)
[VSCode extension l10n sample](https://github.com/microsoft/vscode-extension-samples/tree/main/l10n-sample)