uni.showModal 在鸿蒙app 深色模式下背景还是白色的

### 发行方式

None

### 具体平台

HarmonyOS 5.x

### 开发环境

Windows

### 项目创建方式

HBuilderX

### Vue 版本

vue3

### 依赖版本

"@dcloudio/uni-app": "3.0.0-4080520251106001",
"@dcloudio/uni-app-harmony": "3.0.0-4080520251106001",
"@dcloudio/uni-app-plus": "3.0.0-4080520251106001",
"@dcloudio/uni-components": "3.0.0-4080520251106001",
"@dcloudio/uni-h5": "3.0.0-4080520251106001",
"@dcloudio/uni-mp-alipay": "3.0.0-4080520251106001",
"@dcloudio/uni-mp-baidu": "3.0.0-4080520251106001",
"@dcloudio/uni-mp-harmony": "3.0.0-4080520251106001",
"@dcloudio/uni-mp-jd": "3.0.0-4080520251106001",
"@dcloudio/uni-mp-kuaishou": "3.0.0-4080520251106001",
"@dcloudio/uni-mp-lark": "3.0.0-4080520251106001",
"@dcloudio/uni-mp-qq": "3.0.0-4080520251106001",
"@dcloudio/uni-mp-toutiao": "3.0.0-4080520251106001",
"@dcloudio/uni-mp-weixin": "3.0.0-4080520251106001",
"@dcloudio/uni-mp-xhs": "3.0.0-4080520251106001",
"@dcloudio/uni-quickapp-webview": "3.0.0-4080520251106001"

### 问题描述

uni.showModal 在鸿蒙app 深色模式下背景还是白色的，不会变成深色背景

### 重现步骤

1、鸿蒙手机开启深色模式
2、uni.showModal({ title:'深色模式' })

### 期望行为

uni.showModal 能能进手机系统深色模式做出相对于的改变

### 实际行为

_No response_

### 截图或录屏

_No response_