Support range sliders in usePreventScroll on iOS

[mattvague]

Closes #9493

✅ Pull Request Checklist:

• 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:

• Open Storybook and go to usePreventScroll story on iOS device
• Tap "Click Me in safari and then scroll"
• Should be able to drag thumbs of range slider

[mattvague]

I made a quick attempt at writing some iOS specs for usePreventScroll but hit this CSS parsing issue:

I suspect it's an issue with the usage of @layer but not sure

[mattvague]

I also signed the CLA after seeing that failure if someone wants to re-run