docs(app): introduce global package select

[benjamincanac]

🔗 Linked issue

❓ 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

📝 Checklist

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

[cloudflare-workers-and-pages]

Deploying ui3 with    Cloudflare Pages

Latest commit:	c439a0b
Status:	✅  Deploy successful!
Preview URL:	https://2297c03e.ui-6q2.pages.dev
Branch Preview URL:	https://docs-framework-select.ui-6q2.pages.dev

View logs

[pkg-pr-new]

pnpm add https://pkg.pr.new/@nuxt/ui@2719

commit: c439a0b

[benjamincanac]

@harlan-zw I might need your help to debug this, I've got some prerendering errors regarding Nuxt OG Image:

Would you have an idea? 😬