Upgrade to Webpack4

package.json

@@ -209,6 +209,7 @@
     "styled-jsx": "2.2.6",
     "stylis": "3.5.0",
     "uuid": "3.1.0",
+    "webpack-cli": "3.3.7",
     "xterm": "https://registry.npmjs.org/@zeit/xterm/-/xterm-3.12.0-1.tgz"
   },
   "devDependencies": {
@@ -218,7 +219,7 @@
     "babel-loader": "7.1.2",
     "babel-preset-babili": "0.1.4",
     "babel-preset-react": "6.24.1",
-    "copy-webpack-plugin": "4.3.1",
+    "copy-webpack-plugin": "5.0.4",
     "cross-env": "5.1.4",
     "electron": "3.1.3",
     "electron-builder": "20.38.2",
@@ -236,7 +237,7 @@
     "proxyquire": "1.8.0",
     "spectron": "3.8.0",
     "style-loader": "0.19.1",
-    "webpack": "3.10.0"
+    "webpack": "4.39.3"
   },
   "resolutions": {
     "rc": "1.2.3"

webpack.config.js

@@ -8,6 +8,7 @@ const isProd = nodeEnv === 'production';
 
 module.exports = [
   {
+    mode: 'none',
     name: 'hyper',
     resolve: {
       extensions: ['.js', '.jsx']
@@ -51,9 +52,10 @@ module.exports = [
         }
       ])
     ],
-    target: 'electron'
+    target: 'electron-renderer'
   },
   {
+    mode: 'none',
     name: 'hyper-cli',
     resolve: {
       extensions: ['.js', '.jsx', '.json']