[Bug]: 在鸿蒙折叠屏上开启录屏后 打开app跳转flutter页面白屏

### 请描述遇到的问题，以及您所期望的正确的结果

flutter_boost-4.6.5
设备 华为 pura x5（折叠屏会出现）

大佬Help
开启录屏时，鸿蒙app打开flutter页面，flutter页面白屏 毕现 ，设备鸿蒙os5.1.0 puraX （open Harmony 5.0.1） 问题

### 请说明如何操作会遇到上述问题

冷启动的app 进入 flutter页面白屏 毕现

### 复现的平台

鸿蒙

### Flutter SDK版本

Flutter 3.7.12-ohos-1.1.1 • channel br_3.7.12-ohos-1.1.1 • https://gitcode.com/openharmony-tpc/flutter_flutter.git Framework • revision 1ef8f8d4ad (5 months ago) • 2025-06-03 17:07:07 +0800 Engine • revision 1a65d409c7 Tools • Dart 2.19.6 • DevTools 2.20.0

### FlutterBoost版本

flutter_boost-4.6.5'

No source file, test, or code entry point is identified in the report. First reproduce the cold-start flow on the Huawei Pura X5 with HarmonyOS 5.1.0 while screen recording is enabled, using flutter_boost 4.6.5 and the reported Flutter SDK; done means the Flutter page no longer renders blank and the behavior is verified on that device.

Written by the indexing model from the issue text.