Move html-webpack-plugin out of devDependencies

package.json

@@ -71,6 +71,8 @@
     "file-loader": "^4.0.0",
     "font-awesome": "^4.7.0",
     "glob": "^7.1.1",
+    "html-webpack-harddisk-plugin": "^1.0.1",
+    "html-webpack-plugin": "^4.3.0",
     "http-link-header": "^1.0.2",
     "immutable": "^3.8.2",
     "imports-loader": "^0.8.0",
@@ -152,8 +154,6 @@
     "eslint-plugin-jsx-a11y": "~6.2.3",
     "eslint-plugin-promise": "~4.2.0",
     "eslint-plugin-react": "~7.17.0",
-    "html-webpack-harddisk-plugin": "^1.0.1",
-    "html-webpack-plugin": "^4.0.2",
     "jest": "^24.8.0",
     "raf": "^3.4.1",
     "react-intl-translations-manager": "^5.0.3",