Drop iOS 14 Support: Update UTType usages (#1)

[kean]

Related Issue #20860

I've been working with the updated UTType in previous PRs, for example #20887 and #20866. While some changes requires manual work, there are many where kUTType* can be automatically replaced with the new UTType APIs.

These calls are equivalent (they all return a UTI):

print(kUTTypePNG)
print(kUTTypePNG as String)
print(String(kUTTypePNG))
print(UTType.png.identifier)

Prints:

public.png
public.png
public.png
public.png

To test:

This change can potentially affect any media-related feature in the app. I tested it extensively while working on #20866, which was the first test PR that replaced deprecated kUTType* usage. I don't think it requires any additional testing at this point – just a thorough code review.

Regression Notes

1. Potential unintended areas of impact: nearly all media-related features
2. What I did to test those areas of impact (or what existing automated tests I relied on): manual tests
3. What automated tests I added (or what prevented me from doing so): n/a

PR submission checklist:

• I have completed the Regression Notes.
• I have considered adding unit tests for my changes.
• I have considered adding accessibility improvements for my changes.
• I have considered if this change warrants user-facing release notes and have added them to RELEASE-NOTES.txt if necessary.

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[momo-ozawa]

LGTM ✨

This change can potentially affect any media-related feature in the app. I tested it extensively while working on #20866, which was the first test PR that replaced deprecated kUTType* usage. I don't think it requires any additional testing at this point – just a thorough code review.

Did a thorough code review and can confirm that UTTypes are mapped correctly.

For PRs like this that can potentially cause big regressions, I think it would be good to mention changes in release notes with an [internal] tag

[kean]

For PRs like this that can potentially cause big regressions, I think it would be good to mention changes in release notes with an [internal] tag

Good point, done.

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📲 You can test the changes from this Pull Request in Jetpack Alpha by scanning the QR code below to install the corresponding build.

	App Name	Jetpack Alpha
	Configuration	Release-Alpha
	Build Number	pr20889-d4cce34
	Version	22.6
	Bundle ID	com.jetpack.alpha
	Commit	d4cce34
	App Center Build	jetpack-installable-builds #5042

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