Rename Jest snapshots to be platform agnostic

[Saadnajmi]

Platforms Impacted

• iOS
• macOS
• win32 (Office)
• windows
• android

Description of changes

Previously, most of our snapshot tests were of the form <component>.test.win32.tsx . As it turns out, this doesn't actually test win32 specifically, jest doesn't use the platform suffix to test per platform. When I did a console.log(Platform) inside a win32 jest test (running on a macOS machine), it printed out android. This behavior seems to be inline with this upstream issue (jestjs/jest#1370 (comment)) that confirms that jest doesn't actually run tests platform specifically.

As such, let's rename our snapshot tests to make it more clear they are actually not win32 tests, but platform agnostic tests, seemingly defaulting to either iOS or Android (not sure which one, I've seen conflicting reports). Worth noting the issue I linked details a solution to get platform specific tests, but that seemed like a larger change than what I wanted to achieve with this PR.

Verification

yarn test locally passes. CI passing should be good enough confirmation.

Pull request checklist

This PR has considered (when applicable):

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