[Style] Switch inner zIndex

[lqr131115]

💬 前提强调

• I have searched the issues of this repository and believe that this is not a duplicate.

🙋 描述详情/重现步骤

 <Switch
        checkedChildren={<Text style={{ color: '#000000' }}>开</Text>}
        unCheckedChildren={<Text style={{ color: '#000000' }}>关</Text>}
 />

checkedChildren和unCheckedChildren在转换过程位于thumb之上，如下：Before(改前，即现状)、After(改后)

Switch-2025-07-03.15.33.22.mov

🔴 版本

8.19.2

💻 运行环境

iOS

⚫️ npx react-native info输出信息

System:
OS: macOS 14.5
CPU: (8) arm64 Apple M3
Memory: 58.95 MB / 16.00 GB
Shell:
version: "5.9"
path: /bin/zsh
Binaries:
Node:
version: 18.12.1
path: ~/.nvm/versions/node/v18.12.1/bin/node
Yarn:
version: 1.22.22
path: ~/.nvm/versions/node/v18.12.1/bin/yarn
npm:
version: 8.19.2
path: ~/.nvm/versions/node/v18.12.1/bin/npm
Watchman:
version: 2025.05.26.00
path: /opt/homebrew/bin/watchman
Managers:
CocoaPods:
version: 1.16.2
path: /opt/homebrew/bin/pod
SDKs:
iOS SDK:
Platforms:
- DriverKit 23.5
- iOS 17.5
- macOS 14.5
- tvOS 17.5
- visionOS 1.2
- watchOS 10.5
Android SDK: Not Found
IDEs:
Android Studio: Not Found
Xcode:
version: 15.4/15F31d
path: /usr/bin/xcodebuild
Languages:
Java: Not Found
Ruby:
version: 2.6.10
path: /usr/bin/ruby
npmPackages:
"@react-native-community/cli": Not Found
react:
installed: 18.2.0
wanted: 18.2.0
react-native:
installed: 0.72.5
wanted: 0.72.5
react-native-macos: Not Found
npmGlobalPackages:
"react-native": Not Found
Android:
hermesEnabled: Not found
newArchEnabled: Not found
iOS:
hermesEnabled: Not found
newArchEnabled: Not found

补充说明

No response