[Bug]: 解决鸿蒙3.22黑屏的问题

### 请描述遇到的问题，以及您所期望的正确的结果

FlutterPage({
viewId: this.flutterView!.getId(),
xComponentType: this.xComponentType,
xComponentColor:Color.Transparent///增加这句代码，要不然透明页面和打开时会出现黑屏
})

### 请说明如何操作会遇到上述问题

_No response_

### 在下面填入关键复现代码

```
```

### 复现的平台

Both

### Flutter SDK版本

3.22

### FlutterBoost版本

4.6.5

### 是否延迟初始化FlutterBoost

No

### 解决方案

Start from the FlutterPage entry point shown in the issue, focusing on xComponentColor and the transparent-page opening path. Reproduce the black screen on HarmonyOS 3.22 with FlutterBoost 4.6.5, then verify that opening the transparent page no longer produces a black screen.

Written by the indexing model from the issue text.