AAE-34390 Clean old theming files (#10800)

package.json

@@ -117,10 +117,8 @@
     "@typescript-eslint/parser": "6.21.0",
     "@typescript-eslint/typescript-estree": "7.1.1",
     "@typescript-eslint/utils": "^8.8.1",
-    "@valano/change-font-size": "^1.0.0",
     "ajv": "^8.12.0",
     "commander": "12.0.0",
-    "css-loader": "^7.1.2",
     "dotenv": "16.4.7",
     "editorjs-html": "4.0.5",
     "editorjs-paragraph-with-alignment": "3.0.0",
@@ -159,29 +157,22 @@
     "karma-mocha-reporter": "2.2.5",
     "license-checker": "^25.0.1",
     "lint-staged": "15.2.9",
-    "mini-css-extract-plugin": "2.9.2",
     "mocha": "10.7.3",
     "moment": "^2.29.4",
     "ng-packagr": "17.1.2",
     "nock": "13.5.5",
-    "npm-run-all": "^4.1.5",
     "nx": "^20.0.0",
-    "postcss": "8.4.41",
-    "postcss-sass": "^0.5.0",
     "prettier": "2.8.8",
     "resize-observer-polyfill": "^1.5.1",
     "rimraf": "6.0.1",
-    "sass-loader": "16.0.4",
     "shelljs": "^0.8.5",
     "spdx-license-list": "^6.9.0",
     "storybook": "^8.2.9",
     "stylelint": "16.8.2",
     "stylelint-config-standard-scss": "^13.1.0",
     "ts-node": "^10.9.2",
-    "tsconfig-paths": "^4.1.1",
     "typescript": "5.3.3",
-    "webpack": "5.97.1",
-    "webpack-cli": "^5.1.4"
+    "webpack": "5.97.1"
   },
   "license": "Apache-2.0",
   "engines": {