Fix bridge docs for `RCT_EXPORT`

* Update default Podfile to not depend on a path (facebook#28572)

Summary:
Recently, a default Podfile has been modified to not contain all the React Native pods, but use a helper method `use_react_native!`.

While this is great, it assumes a hardcoded path of `../node_modules/react-native` to be always the correct location of the React Native.

https://github.com/facebook/react-native/blob/d4d8887b5018782eeb3f26efa85125e6bbff73e4/scripts/autolink-ios.rb#L7-L9

Unfortunately, due to the way Ruby works, this completely hides the path away from the users.

Before, they could have seen the wrong path explicitly in a Podfile and knew to update it to resolve path-related issues.

With the current version in `master`, I can see a lot of issues where developers wonder how to resolve the path issues and how to pass the path itself.

https://github.com/facebook/react-native/blob/4118d798265341061105f3a53550db83c66a71cb/template/ios/Podfile#L5-L10

This PR uses React Native CLI configuration (that is already used to link 3rd party dependencies) to explicitly define the correct path to the React Native.

As a result, we don't have to change the paths here whether we're running monorepo or not.

## Changelog

[IOS] [INTERNAL] - Always provide an explicit path to React Native
Pull Request resolved: facebook#28572

Differential Revision: D20945194

Pulled By: TheSavior

fbshipit-source-id: 010f9754f2ed78ef62fd52f4d201f296f5af6d27

* Upgrade Prettier in Xplat to version 1.19.1

Summary:
Upgrades Prettier in Xplat to 1.19.1
Ignores upgrading packages on already on versions greater than 1.19.1

Changelog: [Internal]

allow-large-files
bypass-lint

(Note: this ignores all push blocking failures!)

Reviewed By: gkz, cpojer

Differential Revision: D20879147

fbshipit-source-id: 0deee7ac941e91e1c3c3a1e7d3d3ed20de1d657d

* Stop using get_fbobjc_enable_exception_lang_compiler_flags_DEPRECATED in xplat

Summary:
Old deprecated function.

Changelog: [Internal]

Reviewed By: nlutsenko

Differential Revision: D20148856

fbshipit-source-id: 79d6fb97824b059e50f67ff5a0b4c38ec7a19469

* Add ProGuard rule for hermes (facebook#28571)

Summary:
This adds a ProGuard for `hermes` rule so it does not have to be added by users manually.
facebook#28270

## Changelog

<!-- Help reviewers and the release process by writing your own changelog entry. For an example, see:
https://github.com/facebook/react-native/wiki/Changelog
-->

[Android] [Added] - ProGuard rule for hermes
Pull Request resolved: facebook#28571

Test Plan:
1. Create a project with/without hermes.
2. Enable proguard.

Reviewed By: cpojer

Differential Revision: D20947095

Pulled By: hramos

fbshipit-source-id: 79b166ad2dd060f20041d9f5cfe2f794c754843d

* Move CheckBox JS files to FB Internal

Summary:
Move CheckBox JS files to FB internal

## Changelog:
[General] [Removed] This diff removes the CheckBox export from React Native. Internally, we are requiring CheckBox directly now and externally people will have to use the community maintained module.

Reviewed By: cpojer

Differential Revision: D20910775

fbshipit-source-id: 809e135dc3f68911ac0a004e6eafa8488f0d5327

* Remove CheckBox from docsList.js

Co-authored-by: Mike Grabowski <grabbou@gmail.com>
Co-authored-by: George Zahariev <gkz@fb.com>
Co-authored-by: Scott Wolchok <swolchok@fb.com>
Co-authored-by: Radek Czemerys <radko93@gmail.com>
Co-authored-by: Lauren Tan <laurentan@fb.com>