Add transform-inline-environment-variables Babel plugin (react-grid-layout#445)

Author: erictooth

.babelrc.js

@@ -21,6 +21,7 @@ module.exports = {
   "plugins": [
     "@babel/plugin-transform-flow-comments",
     "@babel/plugin-proposal-class-properties",
+    "transform-inline-environment-variables"
   ],
   "env": {
     "test": {

package.json

@@ -51,6 +51,7 @@
     "babel-eslint": "^10.0.3",
     "babel-loader": "^8.0.6",
     "babel-plugin-espower": "^3.0.1",
+    "babel-plugin-transform-inline-environment-variables": "^0.4.3",
     "eslint": "^6.2.2",
     "eslint-plugin-react": "^7.5.1",
     "flow-bin": "^0.69.0",