test(web): include config button in onboarding snapshot

apps/web/tests/snapshots/onboarding-deepseek-config/models.expected.md

@@ -7,6 +7,7 @@
     - button "模型":
       - img
       - text: 模型
+  - button "打开配置文件"
   - button "关闭":
     - img
     - text: 关闭