Upgrade dependencies

Author: alexdevero

package.json

@@ -43,28 +43,28 @@
     "postpackage": "electron-packager ./ --out=./builds"
   },
   "dependencies": {
-    "electron": "^4.0.0",
-    "react": "^16.7.0",
-    "react-dom": "^16.7.0"
+    "electron": "^4.1.4",
+    "react": "^16.8.6",
+    "react-dom": "^16.8.6"
   },
   "devDependencies": {
-    "@babel/core": "^7.2.2",
+    "@babel/core": "^7.4.3",
     "@babel/preset-react": "^7.0.0",
-    "babel-loader": "^8.0.4",
+    "babel-loader": "^8.0.5",
     "babili-webpack-plugin": "^0.1.2",
-    "css-loader": "^2.0.2",
-    "electron-packager": "^13.0.1",
+    "css-loader": "^2.1.1",
+    "electron-packager": "^13.1.1",
     "file-loader": "^3.0.1",
     "html-webpack-plugin": "^3.2.0",
-    "mini-css-extract-plugin": "^0.5.0",
+    "mini-css-extract-plugin": "^0.6.0",
     "postcss-cssnext": "^3.1.0",
     "postcss-import": "^12.0.1",
     "postcss-loader": "^3.0.0",
-    "postcss-nested": "^4.1.1",
+    "postcss-nested": "^4.1.2",
     "postcss-pxtorem": "^4.0.1",
     "style-loader": "^0.23.1",
-    "webpack": "^4.28.2",
-    "webpack-cli": "^3.1.2",
-    "webpack-dev-server": "^3.1.14"
+    "webpack": "^4.30.0",
+    "webpack-cli": "^3.3.0",
+    "webpack-dev-server": "^3.3.1"
   }
 }