live-announcer incorrectly copies visually hidden styles

[mitchellwarr]

Closes #3791

Object.assign node.style does not accept 1 as a value for width and height; it requires '1px'

✅ 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:

This code sandbox shows what bug this PR fixes: https://codesandbox.io/s/eager-jackson-gy3btv?file=/package.json

[snowystinger]

Great find, thanks for pointing it out and contributing. If you'll follow the instructions here https://react-spectrum.adobe.com/contribute.html#contributor-license-agreement, then close and reopen this PR, we should be able to get it reviewed in short order.

[snowystinger]

Linking another bug that this might address. Shouldn't hold up the review, it'll likely be easier to test it after using the codesandbox on it. I just don't want to forget to check. #3603

[mitchellwarr]

My companies legal process in signing that CLA might take a while. If anyone wants to fix this bug themselves, it might be faster to do so

[snowystinger]

thanks for the update, i'll push it in a minute

[snowystinger]

closing in favor of #3807