## What kind of change does this PR introduce?
a11y bug fix on youtube embed
## What is the current behavior?
YouTube iframes across guide pages have no `title` attribute, so screen
readers announce them as an unnamed frame
## What is the new behavior?
- extracts a `YouTube.tsx` ui component
- adds `<YouTube id title />` + `title` as a required prop
## Test
1. visit `/docs/guides/ai/examples/openai`
<!-- This is an auto-generated comment: release notes by coderabbit.ai
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## Summary by CodeRabbit
- **Documentation**
- Standardized embedded YouTube videos across guides with a consistent
video player.
- Added descriptive titles to improve accessibility and clarity.
- Preserved existing video content and playback behavior.
- Updated video embeds across AI, authentication, database, functions,
realtime, self-hosting, storage, and migration documentation.
- **New Features**
- Added privacy-enhanced YouTube playback for embedded documentation
videos.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->