Upgrade babel and webpack stack

package.json

@@ -39,15 +39,15 @@
   "devDependencies": {
     "7zip-bin": "^2.4.1",
     "@storybook/react": "^3.4.1",
-    "babel-core": "^6.26.0",
-    "babel-eslint": "^8.2.1",
-    "babel-loader": "^7.1.2",
+    "babel-core": "^6.26.3",
+    "babel-eslint": "^8.2.3",
+    "babel-loader": "^7.1.4",
     "babel-plugin-transform-object-rest-spread": "^6.26.0",
-    "babel-preset-env": "^1.6.1",
+    "babel-preset-env": "^1.7.0",
     "babel-preset-react": "^6.24.1",
     "chai": "^4.1.2",
     "cross-env": "^5.1.3",
-    "css-loader": "^0.28.9",
+    "css-loader": "^0.28.11",
     "devtron": "^1.4.0",
     "electron": "2.0.2",
     "electron-builder": "20.14.7",
@@ -63,10 +63,10 @@
     "react": "^16.2.0",
     "react-dom": "^16.2.0",
     "spectron": "~3.8.0",
-    "style-loader": "^0.20.1",
-    "url-loader": "^0.6.2",
-    "webpack": "^3.10.0",
-    "webpack-dev-server": "^2.11.1",
-    "webpack-merge": "^4.1.1"
+    "style-loader": "^0.21.0",
+    "url-loader": "^1.0.1",
+    "webpack": "^4.8.3",
+    "webpack-dev-server": "^3.1.4",
+    "webpack-merge": "^4.1.2"
   }
 }