fix(useLocale): update locale import to enable tree shaking

[AnOrdinaryPeople]

🔗 Linked issue

Resolves #2734

❓ 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 proposed change modifies the import to directly reference the required locale.

Final bundle from import { en } from '../locale' (before):

Final bundle from import en from '../locale/en' (after):

📝 Checklist

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

[pkg-pr-new]

pnpm add https://pkg.pr.new/@nuxt/ui@2735

commit: 7397e34

[benjamincanac]

Thanks! 😊