Build react-native-web using @babel/runtime

Share babel helpers across files. Reduces flat bundle size by 30K
minified and 3K gzipped.

Author: necolas

configs/babel.config.js

@@ -43,7 +43,13 @@ module.exports = function (api) {
       ['babel-plugin-transform-react-remove-prop-types', { mode: 'wrap' }],
       ['@babel/plugin-proposal-class-properties', { loose: true }],
       ['@babel/plugin-proposal-object-rest-spread', { useBuiltIns: true }],
-      '@babel/plugin-proposal-nullish-coalescing-operator'
+      '@babel/plugin-proposal-nullish-coalescing-operator',
+      [
+        '@babel/plugin-transform-runtime',
+        {
+          version: '7.18.6'
+        }
+      ]
     ].concat(modules ? ['babel-plugin-add-module-exports'] : [])
   };
 };

package.json

@@ -35,7 +35,7 @@
     "@babel/plugin-proposal-class-properties": "^7.12.13",
     "@babel/plugin-proposal-nullish-coalescing-operator": "^7.12.13",
     "@babel/plugin-proposal-object-rest-spread": "^7.12.13",
-    "@babel/plugin-transform-runtime": "^7.12.15",
+    "@babel/plugin-transform-runtime": "^7.18.6",
     "@babel/preset-env": "^7.12.13",
     "@babel/preset-flow": "^7.12.13",
     "@babel/preset-react": "^7.12.13",

packages/react-native-web/package.json

@@ -14,6 +14,7 @@
     "!**/__tests__"
   ],
   "dependencies": {
+    "@babel/runtime": "^7.18.6",
     "create-react-class": "^15.7.0",
     "fbjs": "^3.0.0",
     "inline-style-prefixer": "^6.0.0",