Remove usage of UIApplication.sharedApplication

[evoactivity]

Summary

Brings in line with rest of code base and avoids running into this error

‘sharedApplication’ is unavailable: not available on iOS (App Extension) — Use view controller based solutions where appropriate instead.

when Requires Only App-Extension-Safe-API is set to Yes.

Changelog

[iOS] [Fixed] - Update usage of UIApplication.sharedApplication in RCTKeyCommands

Test Plan

Setting Requires Only App-Extension-Safe-API to Yes before this change means the app will not compile, after the change it does.

[facebook-github-bot]

@cipolleschi has imported this pull request. If you are a Meta employee, you can view this diff on Phabricator.

[analysis-bot]

Platform	Engine	Arch	Size (bytes)	Diff
android	hermes	arm64-v8a	7,725,527	+0
android	hermes	armeabi-v7a	7,128,411	+0
android	hermes	x86	8,032,083	+0
android	hermes	x86_64	8,005,366	+0
android	jsc	arm64-v8a	9,595,873	+0
android	jsc	armeabi-v7a	8,362,168	+0
android	jsc	x86	9,540,083	+0
android	jsc	x86_64	10,132,493	+0

Base commit: cc13b02
Branch: main

[analysis-bot]

Platform	Engine	Arch	Size (bytes)	Diff
ios	-	universal	n/a	--

Base commit: cc13b02
Branch: main

[react-native-bot]

This pull request was successfully merged by @evoactivity in 5e79fa8.

^{When will my fix make it into a release? | Upcoming Releases}