chore: fix typos in test descriptions and code comments

[szarbartosz]

Summary:

I was upgrading bare react native project to expo sdk 54 and stumbled upon

"TurboModule system assumes returnType == void iff the method is synchronous."

error from turbomodule/core/TurboModuleInteropUtils.kt

I thought that iff with double f was a typo and wanted to submit a pr with fix - I learned that it means if and only if - decided to scan the repo for any other typos anywany - submitting the ones that I've found.

Changelog:

[Internal]

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[github-actions]

Warning

Missing Test Plan

Please add a "## Test Plan" section to your PR description. A Test Plan lets us know how these changes were tested.

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[meta-codesync]

@cortinico has imported this pull request. If you are a Meta employee, you can view this in D93876470.

[cortinico]

@szarbartosz can you update the snapshots so the tests are passing?