fix(SelectMenu): handle Boolean type as model value

[YIngChenIt]

🔗 Linked issue

resolves #1544

❓ Type of change

• 📖 Documentation (updates to the documentation or readme)
• 🐞 Bug fix (a non-breaking change that fixes an issue)
• 👌 Enhancement (improving an existing functionality)
• ✨ New feature (a non-breaking change that adds functionality)
• 🧹 Chore (updates to the build process or auxiliary tools and libraries)
• ⚠️ Breaking change (fix or feature that would cause existing functionality to change)

📚 Description

Add Boolean type to modelValue prop in SelectMenu.vue，Support Boolean type

📝 Checklist

• I have linked an issue or discussion.
• I have updated the documentation accordingly.

[benjamincanac]

This might not be enough to handle booleans because of: https://github.com/nuxt/ui/pull/1550/files#diff-757d5ca664990fede027ae69097582c37e7a431404c2c6d167855665638700e0R365

This will never display the label when modelValue is false, we might need to condition on undefined / null:

} else if (props.modelValue !== undefined && props.modelValue !== null) {

[YIngChenIt]

This might not be enough to handle booleans because of: https://github.com/nuxt/ui/pull/1550/files#diff-757d5ca664990fede027ae69097582c37e7a431404c2c6d167855665638700e0R365

This will never display the label when modelValue is false, we might need to condition on undefined / null:

} else if (props.modelValue !== undefined && props.modelValue !== null) {

Thanks for your suggestions. I made some adjustments and completed the corresponding usage documentation.

[benjamincanac]

Thanks! 😊