Use monospace font for RCTRedBox.mm message

[EvanBacon]

Summary

The format is crunching spaces:

Now it preserves the space and makes the error look a little less scary:

Changelog

[iOS] [Fixed] - RedBox title font by using a monospace font on iOS +13.

Test Plan

See pictures. You can repro by applying changes and starting a project with a misc > character. The first load triggers the error message.

[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: 5d2a400
Branch: main

[facebook-github-bot]

@robhogan 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
ios	-	universal	n/a	--

Base commit: 5d2a400
Branch: main

[react-native-bot]

This pull request was successfully merged by @EvanBacon in 5933b6a.

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