Working docker version.

package.json

@@ -34,11 +34,9 @@
     "css-loader": "^3.4.2",
     "css-url-relative-plugin": "^1.0.0",
     "cypress": "^4.4.1",
-    "favicons-webpack-plugin": "^2.1.0",
     "file-loader": "^4.3.0",
     "html-webpack-plugin": "^3.2.0",
     "mini-css-extract-plugin": "^0.8.2",
-    "node-sass": "^4.13.1",
     "optimize-css-assets-webpack-plugin": "^5.0.3",
     "postcss-loader": "^3.0.0",
     "react-refresh": "^0.8.3",
@@ -59,6 +57,7 @@
     "react": "^16.12.0",
     "react-dom": "^16.12.0",
     "react-redux": "^7.1.3",
-    "redux": "^4.0.5"
+    "redux": "^4.0.5",
+    "sass": "^1.69.5"
   }
 }