Update clean script to remove 'dist' directory

Author: marle3003

webui/package.json

@@ -13,7 +13,7 @@
     "type-check": "vue-tsc",
     "lint": "eslint . --ext .vue,.js,.jsx,.cjs,.mjs,.ts,.tsx,.cts,.mts --fix --ignore-path .gitignore",
     "copy-docs": "ncp ../docs ./src/assets/docs",
-    "clean": "del-cli ./src/assets/docs",
+    "clean": "del-cli ./src/assets/docs dist",
     "build-sitemap": "node build-sitemap.js"
   },
   "dependencies": {