fix: 修复tabBar页面使用原生安全区占位的情况下获取的窗口高度错误的问题

src/platforms/app-plus/service/framework/safe-area-insets.js

-export default {
-  get bottom () {
-    if (plus.os.name === 'iOS') {
-      const safeArea = plus.navigator.getSafeAreaInsets()
-      return safeArea ? safeArea.bottom : 0
-    }
-    return 0
-  }
-}

src/platforms/app-plus/service/framework/tab-bar.js

@@ -7,8 +7,6 @@ import {
   requireNativePlugin
 } from '../bridge'
 
-import safeAreaInsets from './safe-area-insets'
-
 const TABBAR_HEIGHT = 50
 const isIOS = plus.os.name === 'iOS'
 let config
@@ -164,7 +162,7 @@ export default {
     return visible
   },
   get height () {
-    return (config && config.height ? parseFloat(config.height) : TABBAR_HEIGHT) + safeAreaInsets.bottom
+    return (config && config.height ? parseFloat(config.height) : TABBAR_HEIGHT) + plus.navigator.getSafeAreaInsets().deviceBottom
   },
   // tabBar是否遮挡内容区域
   get cover () {