fix(tailwind): Ensure tailwind properly purges unused utility classes (#2485)

platform/ui/package.json

@@ -45,6 +45,7 @@
   },
   "devDependencies": {
     "autoprefixer": "9.7.4",
+    "mini-css-extract-plugin": "^2.1.0",
     "postcss": "^8.3.5",
     "postcss-loader": "^6.1.1",
     "prop-types": "15.7.2",