[Bug] 新建聊天，无法进行聊天设置

[SuiYunsy]

📦 Deployment Method

Official installation package

📌 Version

v2.15.7

💻 Operating System

Windows

📌 System Version

Win10

🌐 Browser

Edge

📌 Browser Version

130

🐛 Bug Description

https://github.com/user-attachments/assets/9ee4b205-718a-4409-bd17-5980fe225111

用 https://app.nextchat.dev 复现：

1. 随便一个聊天，向上滚动聊天记录，直到聊天页面的左下角“设置”按钮变成“向下”按钮
2. 点击聊天记录页面，比如点一下某条聊天记录，让光标从输入框中消失，转移焦点到聊天记录
3. 点击“+新的聊天”，即可复现：聊天页面的左下角“设置”按钮始终变成“向下”按钮，无法进行设置

貌似还有其他情况下，也会出现这种新建聊天但是“设置”始终是"向下“的情况。目前解决办法是刷新页面或者切换两次聊天。

📷 Recurrence Steps

No response

🚦 Expected Behavior

No response

📝 Additional Information

No response

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Title: [Bug] When creating a new chat, chat settings cannot be made