在手机端输入框聚焦的瞬间，消息列表的位置会变化，会移动到输入框下方，被输入框遮挡，就只能看到最上面的一条消息，上面全是空白

**Version information (版本信息)**
- ChatUI or ChatUI Pro? ChatUI
- ChatUI Version:2.4.2
- React Version:18.0.28
- OS Version: 红米手机
- Browser Version:小米系统自带浏览器

**Describe the bug (描述问题)**
在手机端输入框聚焦的瞬间，消息位置会变化，会移动到输入框下方，被输入框遮挡
**Steps To Reproduce (重现步骤)**
1. 聚焦输入框
2. 在手机端输入框聚焦的瞬间，消息位置会变化，会移动到输入框下方，被输入框遮挡

**Link to minimal reproduction (最小化重现链接)**

**Expected behavior (期望的结果是什么)**

Start by reproducing the issue in ChatUI 2.4.2 on a Redmi phone using Xiaomi's browser: focus the input and observe the message list position. Done means the message list does not move beneath or become obscured by the input, with the reported mobile behavior corrected.

Written by the indexing model from the issue text.