fix(va-menu-item): prevent selection when item is disabled

[khalednadam]

Description

closes #4590
Prevents selected event if the menu item is disabled

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Improvement/refactoring (non-breaking change that doesn't add any feature but make things better)

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