聊天功能优化：聊天名称修改、默认最下端显示、输入缓慢

[tiandiyiqi]

Pre-checks

• I have searched existing issues and this is not a duplicate.

What problem does this solve?

聊天名称修改：现在一个对话的名称固定无法修改，不方便查看
默认最下端显示：现在每次打开对话，都是显示在最上面，还要拉半天
输入缓慢：网页端聊天输入框打字缓慢，同样的在别的地方打字就很快

Proposed solution

No response

Willing to contribute?

• I'd be interested in working on this.