feat: Add role prop to Text component

[gabrieldonadel]

Summary

As pointed out by @necolas on #34424 (comment) we forgot we add the role prop mapping to the Text component. This PR adds a new role prop to Text, mapping the web role values to the already existing accessibilityRole prop and moves the roleToAccessibilityRoleMapping to a common file that can be imported by both the Text and View components as requested on #34424. This PR also updates the RNTester AcessebilityExample to include a test using this new prop.

Changelog

[General] [Added] - Add role prop to Text component

Test Plan

1. Open the RNTester app and navigate to the Accessibility Example page
2. Test the role prop through the Text with role = heading section

[gabrieldonadel]

These were missing on TS

[analysis-bot]

Platform	Engine	Arch	Size (bytes)	Diff
android	hermes	arm64-v8a	7,777,909	+486
android	hermes	armeabi-v7a	7,178,967	+537
android	hermes	x86	8,090,829	+399
android	hermes	x86_64	8,062,605	+485
android	jsc	arm64-v8a	9,636,993	+112
android	jsc	armeabi-v7a	8,401,283	+115
android	jsc	x86	9,586,189	+131
android	jsc	x86_64	10,179,350	+124

Base commit: 5d8a712
Branch: main

[analysis-bot]

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

Base commit: 5d8a712
Branch: main

[jacdebug]

This object roleToAccessibilityRoleMapping needs to in JS VM heap all time after loading this JS. Consider making this is getter function so this object can be deallocated after the call, or better use a switch statement like this.
https://github.com/facebook/react-native/blob/84225573c17b17844b3b3e2a438b3178f7d35b05/packages/normalize-color/index.js#L303

cc @javache

[gabrieldonadel]

Sure, I've just refactor it to be a switch statement

[gabrieldonadel]

@jacdebug would you mind rereviwing this PR?

[jacdebug]

Thanks for the fixups, LGTM and sorry for delay!

[facebook-github-bot]

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

[react-native-bot]

This pull request was successfully merged by @gabrieldonadel in 20718e6.

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