Add stylelint for sass files

package.json

@@ -37,6 +37,7 @@
     "stylelint-config-rational-order": "^0.1.2",
     "stylelint-no-browser-hacks": "^1.2.1",
     "stylelint-order": "^4.1.0",
+    "stylelint-scss": "^3.18.0",
     "webpack": "^5.4.0",
     "webpack-cli": "^4.0.0",
     "webpack-dev-server": "^3.11.0",
@@ -112,6 +113,8 @@
     "build:development": "webpack --config webpack.dev.js",
     "build:production": "webpack --config webpack.prod.js",
     "lint": "eslint \".\"",
-    "stylelint": "stylelint \"src/**/*.css\""
+    "stylelint": "yarn stylelint:css && yarn stylelint:scss",
+    "stylelint:css": "stylelint \"src/**/*.css\"",
+    "stylelint:scss": "stylelint --config=\".stylelintrc.scss.json\" \"src/**/*.scss\""
   }
 }