Use webpack config js package in everything except Jetpack (#21580)

* lazy-images: Use the new webpack-config package

  Mostly as a proof of concept. But I also took the opportunity to clean a
  few things up:

  * Name the built JS as ".min.js" like it should be.
  * Use copy-webpack-plugin to copy the src version of
    intersection-observer.
  * Use @wordpress/dependency-extraction-webpack-plugin to handle the
    cache-buster version in `wp_enqueue_script()`.

* connection-ui: Use the new webpack-config package

  I tried not to change too much in this iteration, but I do note that the
  new package uses a newer version of @wordpress/browserslist-config than
  calyspo-build does so it now transpiles without IE11 support.

* identity-crisis: Use the new webpack-config package

  I tried not to change too much in this iteration, but I do note that the
  new package uses a newer version of @wordpress/browserslist-config than
  calyspo-build does so it now transpiles without IE11 support.

  Also I dropped babel-minify-webpack-plugin, as terser that's included
  with webpack seems to work just as well (and has been updated more
  recently than 4 years ago).

* jitm: Use the new webpack-config package

  This results in no change to the production build. The development build
  is no longer actually minified.

* backup: Use the new webpack-config package

  This also reverts the "bring back the "Cloud" icon, the path changed
  after the Webpack update" bit from #20900 and similar code. The
  problem was Automattic/wp-calypso#56111, which is not present in the
  new package.

Committed via a GitHub action: https://github.com/Automattic/jetpack/actions/runs/1426089502

CHANGELOG.md

@@ -19,6 +19,7 @@ This is an alpha version! The changes listed here are not final.
 - Updated version numbers and Stable Tag
 - Update PHPUnit configs to include just what needs coverage rather than include everything then try to exclude stuff that doesn't.
 - Update upgrade button link target to point to checkout
+- Update webpack build config.
 
 ## 1.0.0 - 2021-10-13
 ### Added

build/index.asset.php

@@ -1 +1 @@
-<?php return array('dependencies' => array('lodash', 'react', 'react-dom', 'wp-api-fetch', 'wp-components', 'wp-data', 'wp-date', 'wp-element', 'wp-i18n', 'wp-polyfill'), 'version' => '7684e095eae0b8878b6ba8d6babdfb60');
+<?php return array('dependencies' => array('lodash', 'react', 'react-dom', 'wp-api-fetch', 'wp-components', 'wp-data', 'wp-date', 'wp-element', 'wp-i18n', 'wp-polyfill'), 'version' => 'b8d94b755f2d265bcab9791c60567a68');

build/index.js.LICENSE.txt

@@ -0,0 +1,5 @@
+/*!
+  Copyright (c) 2018 Jed Watson.
+  Licensed under the MIT License (MIT), see
+  http://jedwatson.github.io/classnames
+*/

composer.json

@@ -9,7 +9,7 @@
 		"automattic/jetpack-backup": "1.1.x-dev",
 		"automattic/jetpack-config": "1.5.x-dev",
 		"automattic/jetpack-connection": "1.30.x-dev",
-		"automattic/jetpack-connection-ui": "1.7.x-dev",
+		"automattic/jetpack-connection-ui": "2.0.x-dev",
 		"automattic/jetpack-sync": "1.27.x-dev",
 		"automattic/jetpack-status": "1.9.x-dev"
 	},

vendor/automattic/jetpack-connection-ui/CHANGELOG.md

@@ -5,7 +5,7 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
-## [1.7.0-alpha] - unreleased
+## [2.0.0-alpha] - unreleased
 
 This is an alpha version! The changes listed here are not final.
 
@@ -15,6 +15,7 @@ This is an alpha version! The changes listed here are not final.
 ### Changed
 - Updated package dependencies.
 - Updated package dependencies.
+- Update webpack build config. Removes IE 11 support in the JavaScript.
 
 ## [1.6.0] - 2021-11-02
 ### Changed
@@ -121,7 +122,7 @@ This is an alpha version! The changes listed here are not final.
 
 - Connection UI: Building the Framework
 
-[1.7.0-alpha]: https://github.com/Automattic/jetpack-connection-ui/compare/v1.6.0...v1.7.0-alpha
+[2.0.0-alpha]: https://github.com/Automattic/jetpack-connection-ui/compare/v1.6.0...v2.0.0-alpha
 [1.6.0]: https://github.com/Automattic/jetpack-connection-ui/compare/v1.5.3...v1.6.0
 [1.5.3]: https://github.com/Automattic/jetpack-connection-ui/compare/v1.5.2...v1.5.3
 [1.5.2]: https://github.com/Automattic/jetpack-connection-ui/compare/v1.5.1...v1.5.2

vendor/automattic/jetpack-connection-ui/build/index.asset.php

@@ -1 +1 @@
-<?php return array('dependencies' => array('lodash', 'react', 'react-dom', 'wp-components', 'wp-compose', 'wp-data', 'wp-element', 'wp-i18n', 'wp-polyfill'), 'version' => 'f37d45c886631a20a4a063bc140bf971');
+<?php return array('dependencies' => array('lodash', 'react', 'react-dom', 'wp-components', 'wp-compose', 'wp-data', 'wp-element', 'wp-i18n', 'wp-polyfill'), 'version' => '1ea00cf3f16d369648c72ef41f8dea7c');