Fix eslint in config folder

.eslintrc

@@ -2,6 +2,7 @@
   "extends": "vtex",
   "root": true,
   "env": {
+    "browser": true,
     "node": true,
     "es6": true,
     "jest": true

config/env.js

@@ -1,3 +1,5 @@
+/* eslint-disable global-require */
+
 'use strict'
 
 const fs = require('fs')
@@ -10,15 +12,15 @@ const paths = {
   dotenv: resolveApp('.env'),
 }
 
-const NODE_ENV = process.env.NODE_ENV
+const { NODE_ENV } = process.env
 if (!NODE_ENV) {
   throw new Error(
     'The NODE_ENV environment variable is required but was not specified.'
   )
 }
 
 // https://github.com/bkeepers/dotenv#what-other-env-files-can-i-use
-var dotenvFiles = [
+const dotenvFiles = [
   `${paths.dotenv}.${NODE_ENV}.local`,
   `${paths.dotenv}.${NODE_ENV}`,
   // Don't include `.env.local` for `test` environment

config/jest/fileTransform.js

@@ -1,6 +1,7 @@
 'use strict'
 
 const path = require('path')
+
 const camelcase = require('camelcase')
 
 // This is a custom Jest transformer turning file imports into filenames.

config/polyfills.js

@@ -1,3 +1,5 @@
+/* eslint-disable global-require */
+
 'use strict'
 
 if (typeof Promise === 'undefined') {

config/test.js

@@ -15,8 +15,10 @@ process.on('unhandledRejection', err => {
 // Ensure environment variables are read.
 require('./env')
 
+const { execSync } = require('child_process')
+
 const jest = require('jest')
-const execSync = require('child_process').execSync
+
 const argv = process.argv.slice(2)
 
 function isInGitRepository() {

config/webpack.config.js

@@ -1,12 +1,16 @@
+/* eslint-disable global-require */
+
 'use strict'
 
 const path = require('path')
+
 const autoprefixer = require('autoprefixer')
 const webpack = require('webpack')
 const CaseSensitivePathsPlugin = require('case-sensitive-paths-webpack-plugin')
 const WatchMissingNodeModulesPlugin = require('react-dev-utils/WatchMissingNodeModulesPlugin')
 
 const babelConfig = require('../babel.config.js')
+
 const appSrc = path.join(__dirname, '..', 'react')
 const appNodeModules = path.join(__dirname, '..', 'react', 'node_modules')