fix(Apple): Render vector borders on Button

[Saadnajmi]

Platforms Impacted

• [x] iOS
• [x] macOS
• [x] win32 (Office)
• [x] windows
• [x] android

Description of changes

Due to a very obscure check inside of React Native's iOS (and macOS) implementation, borders on views are sometimes drawn as raster images. This means that when you zoom into a view (if it's a ScrollView for example), the corner radio don't scale well, and you can get blurriness. Luckily, the fix is to just add the style property overflow: 'hidden'. This seems like a safe/good thing to do for all platforms, so I didn't gate it behind a platform check

Verification

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Pull request checklist

This PR has considered (when applicable):

• [ ] Automated Tests
• [ ] Documentation and examples
• [ ] Keyboard Accessibility
• [ ] Voiceover
• [ ] Internationalization and Right-to-left Layouts