Migration RN Alert Dialog to androidx

[Abbondanzo]

Summary

Migrates the AlertFragment from android.app.AlertDialog to androidx.appcompat.app.AlertDialog. This backports tons of fixes that have gone into the AlertDialog component over the years, including proper line wrapping of button text, dark mode support, alignment of buttons, etc.

This change provides a fallback to the original android.app.AlertDialog if the current activity is not an AppCompat descendant.

For consideration

• Alert dialog themes may no longer need the android namespace, meaning themes can now be specified as alertDialogTheme rather than android:alertDialogTheme.

Changelog:

[Android] [Changed] - Migrated AlertDialog to androidx.appcompat

Differential Revision: D57019423 and D57113950

[facebook-github-bot]

This pull request was exported from Phabricator. Differential Revision: D57113950

[facebook-github-bot]

This pull request was exported from Phabricator. Differential Revision: D57113950

[analysis-bot]

Platform	Engine	Arch	Size (bytes)	Diff
android	hermes	arm64-v8a	20,249,243	-5
android	hermes	armeabi-v7a	n/a	--
android	hermes	x86	n/a	--
android	hermes	x86_64	n/a	--
android	jsc	arm64-v8a	23,454,742	-8
android	jsc	armeabi-v7a	n/a	--
android	jsc	x86	n/a	--
android	jsc	x86_64	n/a	--

Base commit: 8a15e0d97ad7556b9f1b4068662791a32e1ae3d2 Branch: main

[facebook-github-bot]

This pull request was exported from Phabricator. Differential Revision: D57113950

[facebook-github-bot]

This pull request was exported from Phabricator. Differential Revision: D57113950

[facebook-github-bot]

This pull request was exported from Phabricator. Differential Revision: D57113950

[facebook-github-bot]

This pull request was exported from Phabricator. Differential Revision: D57113950

[facebook-github-bot]

This pull request was exported from Phabricator. Differential Revision: D57113950

[facebook-github-bot]

This pull request was exported from Phabricator. Differential Revision: D57113950

[facebook-github-bot]

This pull request was exported from Phabricator. Differential Revision: D57113950

[facebook-github-bot]

This pull request was exported from Phabricator. Differential Revision: D57113950

[facebook-github-bot]

This pull request was exported from Phabricator. Differential Revision: D57113950

[facebook-github-bot]

This pull request was exported from Phabricator. Differential Revision: D57113950

[facebook-github-bot]

This pull request has been merged in facebook/react-native@297ded90aa1e905a37dba316e7b19b6779c8c804.