docs: 更新文档标题和首页文案

- 移除高级功能菜单中的"QQ"前缀，使文档标题更加通用
- 更新首页英雄文案，将"QQBot"改为"ChatBot"，强调其通用性

Author: xiaosuyyds

docs/.vitepress/config.ts

@@ -26,8 +26,8 @@ export default ({
                     { text: '事件处理', link: '/advanced/event-handlers' },
                     { text: '事件管理器', link: '/advanced/event-manager' },
                     { text: '操作', link: '/advanced/actions' },
-                    { text: 'QQ富文本', link: '/advanced/rich-text' },
-                    { text: 'QQ数据缓存', link: '/advanced/data-cache' },
+                    { text: '富文本', link: '/advanced/rich-text' },
+                    { text: '数据缓存', link: '/advanced/data-cache' },
                     { text: '插件配置', link: '/advanced/plugin-config' },
                     { text: '插件管理器', link: '/advanced/plugin-manager' }
                 ]

docs/index.md

@@ -4,7 +4,7 @@ layout: home
 
 hero:
   name: "MuRainBot2"
-  text: "一个基于 Python<br>适配 OneBot11 协议的<br>轻量级 QQBot 框架"
+  text: "一个基于 Python<br>适配 OneBot11 协议的<br>轻量级 ChatBot 框架"
   tagline: 
   image:
     src: /icon.webp