docs: add responsive modal example

[oneminch]

🔗 Linked issue

N/A - Documentation Update

❓ Type of change

• 📖 Documentation (updates to the documentation, readme or JSdoc annotations)
• 🐞 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)
• 🧹 Chore (updates to the build process or auxiliary tools and libraries)
• ⚠️ Breaking change (fix or feature that would cause existing functionality to change)

📚 Description

This PR doesn't resolve any particular issue. It adds an additional example to the Dialog and Drawer component docs. More specifically, it adds an example implementation of a responsive and user-friendly modal using both Dialog and Drawer.

📸 Screenshots

Desktop	Mobile

📝 Checklist

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