【功能需求】新增聊天对话框聊天记录搜索功能

[lifengsbotlp]

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问题描述 希望添加一个聊天记录快捷搜索的功能，当聊天记录多的时候可通过搜索快速定位 解决思路 快捷键呼出搜索框，输入关键字模糊匹配当前对话框的聊天记录