build: use browserslist-config-wordpress Browserslist shared config (…

…#68)

* build: use `browserslist-config-wordpress` Browserslist shared config

* chore(babel-preset-default): switch to `@wordpress/browserslist-config`

* chore: fix merge conflict

* chore: regenerate `package-lock.json`

* Browserslit config: Add devDependency in the root repository

* Babel preset default: Add missing spaces around square brackets

package.json

@@ -5,6 +5,7 @@
 		"npm": ">=5.0.0"
 	},
 	"devDependencies": {
+		"@wordpress/browserslist-config": "^2.0.0",
 		"babel-core": "^6.26.0",
 		"chalk": "^2.0.1",
 		"check-node-version": "^3.1.1",

packages/babel-preset-default/index.js

@@ -6,18 +6,7 @@ module.exports = {
 		! isTestEnv && [ require( 'babel-preset-env' ), {
 			modules: false,
 			targets: {
-				browsers: [
-					'last 2 Chrome versions',
-					'last 2 Firefox versions',
-					'last 2 Safari versions',
-					'last 2 Edge versions',
-					'last 2 Opera versions',
-					'last 2 iOS versions',
-					'last 1 Android version',
-					'last 1 ChromeAndroid version',
-					'ie 11',
-					'> 1%',
-				],
+				browsers: [ 'extends @wordpress/browserslist-config' ],
 			},
 		} ],
 		isTestEnv && [ require( 'babel-preset-env' ) ],

packages/babel-preset-default/package.json

@@ -22,6 +22,7 @@
 		"node": ">=8"
 	},
 	"dependencies": {
+		"@wordpress/browserslist-config": "^2.0.0",
 		"babel-plugin-lodash": "^3.3.2",
 		"babel-plugin-transform-object-rest-spread": "^6.23.0",
 		"babel-plugin-transform-react-jsx": "^6.24.1",