chore: Bump webpack, webpack-bundle-analyzer, webpack-cli and webpack-dev-server to latest

package.json

@@ -114,11 +114,11 @@
     "tslint-react": "^3.6.0",
     "typescript": "^3.0.3",
     "uglifyjs-webpack-plugin": "^1.2.7",
-    "webpack": "4.19.1",
-    "webpack-bundle-analyzer": "^2.9.0",
+    "webpack": "4.29.6",
+    "webpack-bundle-analyzer": "^3.1.0",
     "webpack-cleanup-plugin": "^0.5.1",
-    "webpack-cli": "^2.1.4",
-    "webpack-dev-server": "^3.1.0",
+    "webpack-cli": "^3.2.3",
+    "webpack-dev-server": "^3.2.1",
     "webpack-merge": "^4.1.0",
     "zone.js": "^0.7.2"
   },