ITMS-90809: api不再支持

**ITMS-90809: Deprecated API Usage** - App updates that use UIWebView will no longer be accepted as of December 2020\. Instead, use WKWebView for improved security and reliability. Learn more ([https://developer.apple.com/documentation/uikit/uiwebview](https://developer.apple.com/documentation/uikit/uiwebview)).