fix: resolve header overlap on Dynamic Island iPhones

- app.js 通过 wx.getSystemInfoSync 获取 statusBarHeight 存入 globalData
- 所有12个自定义导航页面的 JS 读取 statusBarHeight
- WXML 通过 style="padding-top: {{statusBarHeight + 24}}px" 动态适配
- 普通手机和灵动岛手机都能正确显示

miniprogram/app.js

@@ -5,10 +5,14 @@ App({
     userInfo: null,
     userId: null,
     connectedDevice: null,
-    currentTreatment: null
+    currentTreatment: null,
+    statusBarHeight: 44
   },
 
   onLaunch: function () {
+    var sysInfo = wx.getSystemInfoSync()
+    this.globalData.statusBarHeight = sysInfo.statusBarHeight || 44
+
     if (!wx.cloud) {
       console.error('请使用 2.2.3 或以上的基础库以使用云能力')
       return