Update website dependencies

Author: danez

website/package.json

@@ -24,8 +24,8 @@
     "html-loader": "^0.5.5",
     "html-webpack-plugin": "^3.2.0",
     "less": "^3.9.0",
-    "less-loader": "^4.1.0",
-    "mini-css-extract-plugin": "^0.5.0",
+    "less-loader": "^5.0.0",
+    "mini-css-extract-plugin": "^0.6.0",
     "optimize-css-assets-webpack-plugin": "^5.0.1",
     "react": "^16.7.0",
     "react-dom": "^16.7.0",