[#43] Update webpack-cli, Fix dev script

package.json

@@ -6,7 +6,7 @@
   "author": "Petr Jordan",
   "license": "MIT",
   "scripts": {
-    "dev": "webpack-dev-server --env.env=dev",
+    "dev": "webpack-dev-server  --env env=dev",
     "dev:bundleanalyzer": "yarn dev -- --env.addons=bundleanalyzer",
     "prebuild": "rimraf dist",
     "build": "cross-env NODE_ENV=production webpack -p --env.env=prod",
@@ -19,6 +19,7 @@
     "@frogcat/ttl2jsonld": "^0.0.6",
     "@tippyjs/react": "^4.2.5",
     "@triply/yasgui": "^4.2.14",
+    "@webpack-cli/serve": "^1.7.0",
     "bootstrap": "^4.5.3",
     "cytoscape": "^3.17.1",
     "cytoscape-compound-drag-and-drop": "^1.0.0",
@@ -74,7 +75,7 @@
     "style-loader": "^1.1.3",
     "webpack": "^4.42.1",
     "webpack-bundle-analyzer": "^4.9.0",
-    "webpack-cli": "^3.3.11",
+    "webpack-cli": "^4.10.0",
     "webpack-dev-server": "^4.15.1",
     "webpack-merge": "^4.2.2"
   },