Update Monaco keybindings on keybinding change

[colin-grant-work]

What it does

Fixes #8769, closes #8776

How to test

1. Change keybindings for commands relevant in Monaco. (e.g. for command editor.action.deleteLines).
2. Ensure that those keybindings take effect in an editor.
3. Change keybinding for acceptRenameInput.
4. Open an editor and start a rename symbol interaction.
5. Observe that the new acceptRenameInput shortcut is displayed as part of the input, and that that key sequence in fact accepts the rename.

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 work as expected, and are more straightforward thanks to the monaco upgrade 👍

• keybindings for commands like delete line work well in the editor
• updating acceptRenameInput works for both the rendering (F2) and applying the keybinding
• updating acceptRenameInputPreview works for both the rendering (F2) and applying the keybinding