docs(locale-select): use model-value instead of v-model in examples

[NyllRE]

🔗 Linked issue

Resolves #5021

❓ 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

the v-model in LocaleSelect is broken and doesn't update the local entirely, weirdly enough using :model-value is updating correctly. So either fix the v-model issue or let users know that it works with :model-value to prevent further confusion from users

📝 Checklist

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

[pkg-pr-new]

npm i https://pkg.pr.new/@nuxt/ui@5410

commit: 364d7b9

[benjamincanac]

Thanks! 😊

[NyllRE]

No worries, glad to help!

[owljacob]

Thank you for this fix! 🙌