Have Menu expanded by default or not

[FlorianJacta]

Description

The goal would be to have like the expandable, a property to expand or not the menu expanded.

This will allow users to choose the default look of the menu: either be expanded or not.

This was asked here: https://stackoverflow.com/questions/79234418/taipy-menu-open-by-default

Acceptance Criteria

• Any new code is covered by a unit tested.
• Check code coverage is at least 90%.

Code of Conduct

• I have checked the existing issues.
• I am willing to work on this issue (optional)

[willjrho]

I would like to work on this issue.

My proposed solution involves adding a new property called defaultExpanded to the MenuCtl component, which will allow users to specify whether the menu should be expanded by default or not. I will also ensure that any changes are covered by unit tests to maintain the required code coverage.

@FlorianJacta