Shadow DOM support for `ariaHideOutside`

[MahmoudElsayad]

Closes #6133

Changes

✅ Pull Request Checklist:

• [x] Included link to corresponding React Spectrum GitHub Issue.
• [ ] Added/updated unit tests and storybook for this change (for new code or code which already has tests).
• [ ] Filled out test instructions.
• [ ] Updated documentation (if it already exists for this component).
• [ ] Looked at the Accessibility Practices for this feature - Aria Practices

📝 Test Instructions:

🧢 Your Project:

PSPDFKit -