feat: add CSS export for library styles

package.json

@@ -4,6 +4,7 @@
   "main": "./dist/index.js",
   "module": "./dist/index.js",
   "types": "./dist/index.d.ts",
+  "style": "./dist/assets/noob-mengyxu.css",
   "keywords": [
     "noob-mengyxu",
     "noob",
@@ -72,7 +73,8 @@
     "./packages": {
       "types": "./dist/packages/index.d.ts",
       "default": "./dist/packages/index.js"
-    }
+    },
+    "./style.css": "./dist/assets/noob-mengyxu.css"
   },
   "scripts": {
     "dev": "vite",