Add original labels for monaco commands

[msujew]

What it does

Closes #11349

Monaco stores its original labels in an alias property that we can use to set the original label.

How to test

1. Change your locale to another language than English
2. Open an editor view
3. Open the command palette and search for a command contributed by monaco (such as Add cursor below)
4. The command should appear with its translated title and its original name below in the command palette

Review checklist

• As an author, I have thoroughly tested my changes and carefully followed the review guidelines

Reminder for reviewers

• As a reviewer, I agree to behave in accordance with the review guidelines

[vince-fugnitto]

I confirm that the changes fix the bug 👍