feat(docs): added playground section

[lucacacciarru]

Proposed changes

added playground section and wrapped all doc sections with FadeInBox component

WIP #707

Types of changes

• 🐛 Bugfix (non-breaking change which fixes an issue)
• ✨ New feature (non-breaking change which adds functionality or enhancements)
• 💥 Breaking change (fix or feature that would cause existing functionality to not work as expected)
• ✅ Tests (added tests for an existing feature)
• 📚 Documentation Update (if none of the other choices apply)
• 🙌 Other (please, write a clear and concise description of the proposal in the section above)

Checklist

• 👀 I have read the CONTRIBUTING doc
• ✅ Lint and unit tests pass locally with my changes
• 🧪 I have added tests that prove my fix is effective or that my feature works
• 📚 I have added the necessary documentation (if appropriate)
• 🔀 Any dependent changes have been merged and published in downstream modules

UI Preview:
https://tella.video/my-video-g2le

[changeset-bot]

⚠️ No Changeset found

Latest commit: c5dfbd4

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[mauroerta]

🧯