feat: auto activate subMenu on select root menu (#5147)

* feat: auto activate subMenu on click root menu

* fix: prop name fixed

* chore: test and docs update

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

@@ -45,7 +45,11 @@
     "width": "宽度",
     "visible": "显示侧边栏",
     "collapsed": "折叠菜单",
-    "collapsedShowTitle": "折叠显示菜单名"
+    "collapsedShowTitle": "折叠显示菜单名",
+    "autoActivateChild": "自动激活子菜单",
+    "autoActivateChildTip": "点击顶层菜单时,自动激活第一个子菜单或者上一次激活的子菜单",
+    "expandOnHover": "鼠标悬停展开",
+    "expandOnHoverTip": "鼠标在折叠区域悬浮时，`启用`则展开当前子菜单，`禁用`则展开整个侧边栏"
   },
   "tabbar": {
     "title": "标签栏",