fix: Revert didMoveToSuperview back to didMoveToWindow (react-native-…

…webview#3041)

Fixes multiple issues with the iOS new architecture (WebViews not rendering, javascript on pages not working, possibly more) and occasional crash with the iOS old architecture.

apple/RNCWebViewImpl.m

@@ -436,16 +436,9 @@ - (WKWebViewConfiguration *)setUpWkWebViewConfig
   return wkWebViewConfig;
 }
 
-// react-native-mac os does not support didMoveToSuperView https://github.com/microsoft/react-native-macos/blob/main/React/Base/RCTUIKit.h#L388
-#if !TARGET_OS_OSX
-- (void)didMoveToSuperview
-{
-  if (_webView == nil) {
-#else
 - (void)didMoveToWindow
 {
   if (self.window != nil && _webView == nil) {
-#endif // !TARGET_OS_OSX
     WKWebViewConfiguration *wkWebViewConfig = [self setUpWkWebViewConfig];
     _webView = [[RNCWKWebView alloc] initWithFrame:self.bounds configuration: wkWebViewConfig];
     [self setBackgroundColor: _savedBackgroundColor];