Fix YouTube Error 153 by adding referrerPolicy to IFrame component

This change adds `referrerPolicy="strict-origin-when-cross-origin"` as a default attribute to the IFrame component to resolve YouTube Error 153 that occurs when embedding YouTube videos.

The referrerPolicy is placed before the props spread, allowing users to override it if needed while providing a sensible default that fixes the YouTube embedding issue.

Fixes #5883

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Co-Authored-By: Claude <noreply@anthropic.com>