🚧 PoC: add packages details page

[Simek]

📝 Why & how

Supersedes:

• 🚧 PoC: Package pages #1180

A proof-of-concept of dedicated details pages per package, bunch of TODOs left, pushing it as draft to gather more feedback.

You will be able to navigate to dedicated page for a package by clicking the button near package name on the list. The new page would contain the additional data, like README content, dependencies list, authors and more.

✅ Checklist

• Explained how you fixed the issue or built the feature.
• Described how to use or verify the change.

🚚 Preview deployment

• https://react-native-directory-7602q465t-rndir.vercel.app/