Add option to remove anchor arg from context menus

[colin-grant-work]

What it does

Closes #10540
Fixes #10571
This PR introduces an additional option for the context menu renderer to remove the anchor argument included by default, and applies that option in the handlers for menus from the sidebar. The anchor argument is used by a number of commands for identifying a specific widget when several could trigger the same context menu, but it is not intended to be used with either of the side panel menus.

See #9931 for another example of the problem

How to test

1. Set the window.menuBarVisibility preference to compact.
2. Run the Run --> Start Debugging command from the main menu.
3. If a default launch configuration is available, a debug session should start.

---

1. Set the window.menuBarVisibility preference to compact.
2. Open an editor and select some text.
3. Use the menu to run the Edit --> Cut command.
4. The selected text should be cut and be available in the clipboard.

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

[colin-grant-work]

@shuyaqian, would you mind testing this to see if it solves the problems you encountered with the compact-style menu?

[msujew]

The changes look good to me!

• Using the Cut command from the main menu (classic/collapsed) works correctly for different contexts (monaco/html input elements)
• I could not notice any regressions related to other menu entries/context menus

[shuyaqian]

@shuyaqian, would you mind testing this to see if it solves the problems you encountered with the compact-style menu?

Tested and the problem has been fixed.