feat(sidebar): 实现响应式侧边栏状态管理

- 添加媒体查询监听以自动切换侧边栏显示状态
- 引入sidebarStore统一管理侧边栏开闭逻辑
- 移除页面内联侧边栏展开控制逻辑
- 添加Sprite图标组件客户端渲染条件判断
- 更新侧边栏样式类名以支持过渡动画效果
- 移除用户信息展示相关冗余代码块

package-lock.json

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