feat(nuxt)!: add support for components/global

[danielroe]

🔗 Linked issue

resolves nuxt/nuxt#14051

❓ 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 like performance)
• ✨ New feature (a non-breaking change that adds functionality)
• ⚠️ Breaking change (fix or feature that would cause existing functionality to change)

📚 Description

⚠️ Breaking change: If you previously was using components/global, please move them to new directory otherwise they will lose Global suffix and will be globally available as lazy chunks.

This PR:

1. Cleans up component templates and creates two different templates, for client/server modes, which should fix any issues with client/server components being imported in the wrong context. This will be needed for server components. So importing from #components on client-side will no longer pull in server-only components or vice versa.
2. Supports registering global components with ~/components/global or MyComponent.global.ts. It does not change how they are made available; it's still via async registration.
3. Adds a couple of test cases for the above.

I'm happy to split out 1 & 2 if that would be helpful in reviewing it. Let me know if so.

📝 Checklist

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

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