Updates to the livestream docs

[martinmitrevski]

🎯 Goal

Improve the docs about livestreaming.

📝 Summary

Updated docusaurus docs.

🛠 Implementation

Provide a detailed description of the implementation and explain your decisions if you find them relevant.

🎨 Showcase

Add relevant screenshots and/or videos/gifs to easily see what this PR changes, if applicable.

Before	After
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🧪 Manual Testing Notes

Explain how this change can be tested manually, if applicable.

☑️ Contributor Checklist

• [ ] I have signed the Stream CLA (required)
• [ ] This change follows zero ⚠️ policy (required)
• [x] This change should receive manual QA
• [ ] Changelog is updated with client-facing changes
• [ ] New code is covered by unit tests
• [ ] Comparison screenshots added for visual changes
• [ ] Affected documentation updated (Docusaurus, tutorial, CMS)