fix(module): put back #build/ui.css alias (#5499)

Author: benjamincanac

package.json

@@ -87,12 +87,16 @@
       ]
     }
   },
+  "imports": {
+    "#build/ui.css": "./.nuxt/ui.css"
+  },
   "bin": {
     "nuxt-ui": "./cli/index.mjs"
   },
   "style": "./dist/runtime/index.css",
   "main": "./dist/module.mjs",
   "files": [
+    ".nuxt/ui.css",
     "dist",
     "cli",
     "vue-plugin.d.ts"