Realtime: fixes and improvements for simulcast

[nils-ohlmeier]

Summary

Replaced ridUnavailableStrategy with ridNotAvailable.
Replaced Calls SFU with Realtime SFU.
Added clarification that simulcast only applies to video.
Removed not yet existing switching on key frames.

Documentation checklist

• The documentation style guide has been adhered to.

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PR Change Summary

Updated the documentation for the Realtime SFU to reflect recent changes and improvements related to simulcast functionality.

• Replaced 'ridUnavailableStrategy' with 'ridNotAvailable' in the documentation.
• Updated references from 'Cloudflare Calls SFU' to 'Cloudflare Realtime SFU'.
• Clarified that simulcast applies only to video streams.
• Removed mention of switching on key frames, which is not yet implemented.

Modified Files

• src/content/docs/realtime/simulcast.mdx

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[github-actions]

Preview URL: https://e39ae528.preview.developers.cloudflare.com
Preview Branch URL: https://improve-simulcast.preview.developers.cloudflare.com

Files with changes (up to 15)

Original Link	Updated Link
https://developers.cloudflare.com/realtime/simulcast/	https://improve-simulcast.preview.developers.cloudflare.com/realtime/simulcast/