[doc] 在package.json中添加svelte-confetti依赖

docs/site/package.json

@@ -42,6 +42,7 @@
 		"stdf": "file:../../packages/stdf",
 		"svelte": "^5.7.1",
 		"svelte-check": "^4.1.1",
+		"svelte-confetti": "^2.3.1",
 		"tailwindcss": "^4.0.12",
 		"typescript": "^5.7.2",
 		"typescript-eslint": "^8.17.0",