message: chore: remove unused package
diff: "rucksack-css": "^1.0.2",
  "run-sequence": "^2.2.1",
  "sass-loader": "^7.0.1",
  - "schema-utils": "^1.0.0",
  "standard": "^11.0.1",
  "style-loader": "^0.21.0",
  "stylelint": "^9.10.1",
  