Disabled menu in VS - Remove to not be visible. (backport #18736)

[mergify]

GitHub Issue (If applicable): Closes license 373

PR Type

What kind of change does this PR introduce?

• Bugfix

What is the current behavior?

When the UnoMenuCommand are Dispose, we disable and hidden the Uno Platform Menu.

To repro.

I was able to reproduce this,
when i am running the project using a version that enable the Extension Menu.
And than rebase to the same project using a different sdk
and without the HR trigger to enable the Extension. (the UnoMenuCommand are diposed)

and When returned to the branch with the HR feature that add the Extension menu, the menu was enabled again.

What is the new behavior?

Now we are removing the Menu from the CommandService.
When the UnoMenuCommand started again the Main Menu will be created again.

PR Checklist

Please check if your PR fulfills the following requirements:

• Docs have been added/updated which fit documentation template (for bug fixes / features)
• Unit Tests and/or UI Tests for the changes have been added (for bug fixes / features) (if applicable)
• Validated PR Screenshots Compare Test Run results.
• Contains NO breaking changes
• Associated with an issue (GitHub or internal) and uses the automatic close keywords.
• Commits must be following the Conventional Commits specification.

Other information

Internal Issue (If applicable):

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This is an automatic backport of pull request #18736 done by [Mergify](https://mergify.com).