fix: dropdown menu responsiveness and improve dialog handling (#8187)

* fix: 修复用户下拉框小部件菜单行点击无响应及弹框闪退

- 主题/时区/全屏/通知菜单行补充 @select 处理器，点击行任意位置即可触发
- 时区设置弹框宿主移出 DropdownMenu（showButton 模式），修复弹框随下拉框关闭而闪退
- 通知组件暴露 toggle 供下拉框调用
- 偏好设置小部件文案精简，positionMap 顺序调整

* feat: draggable-list.vue 直接复用 SelectItem，用法和 tabbar.vue 完全一致

packages/locales/src/langs/zh-CN/preferences.json

@@ -194,24 +194,24 @@
     "title": "小部件",
     "globalSearch": "全局搜索",
     "globalSearchPosition": "全局搜索位置",
-    "fullscreen": "启用全屏",
+    "fullscreen": "全屏",
     "fullscreenPosition": "全屏按钮位置",
-    "themeToggle": "启用主题切换",
+    "themeToggle": "主题切换",
     "themeTogglePosition": "主题切换位置",
     "languageToggle": "语言切换",
     "languageTogglePosition": "语言切换位置",
-    "notification": "启用通知",
+    "notification": "通知",
     "notificationPosition": "通知位置",
     "sidebarToggle": "启用侧边栏切换",
-    "lockScreen": "启用锁屏",
+    "lockScreen": "锁屏",
     "lockScreenPosition": "锁屏按钮位置",
     "logoutButtonPosition": "退出按钮位置",
     "header": "顶栏",
     "userDropdown": "用户下拉窗",
     "hidden": "已隐藏",
-    "refresh": "启用刷新",
+    "refresh": "刷新",
     "refreshPosition": "刷新按钮位置",
-    "timezone": "启用时区",
+    "timezone": "时区",
     "timezonePosition": "时区按钮位置"
   },
   "antd": {