message: Removed redundant shadow view
  The bounds change handles the resize
diff: #import "NVNavigationStackManager.h"
  #import "NVNavigationStackView.h"
  -#import <React/RCTShadowView.h>
  -
  -@interface NVNavigationStackShadowView : RCTShadowView
  -
  -@end
  -
  -@implementation NVNavigationStackShadowView
  -
  -- (void)insertReactSubview:(id<RCTComponent>)subview atIndex:(NSInteger)atIndex
  -{
  - [super insertReactSubview:subview atIndex:atIndex];
  - if ([subview isKindOfClass:[RCTShadowView class]]) {
  - ((RCTShadowView *)subview).size = RCTScreenSize();
  - }
  -}
  -
  -@end
  -
  @implementation NVNavigationStackManager
  RCT_EXPORT_MODULE()
  @@ -28,11 +10,6 @@ RCT_EXPORT_MODULE()
  return [[NVNavigationStackView alloc] initWithBridge:self.bridge];
  }
  -- (RCTShadowView *)shadowView
  -{
  - return [NVNavigationStackShadowView new];
  -}
  -
  RCT_EXPORT_VIEW_PROPERTY(mostRecentEventCount, NSInteger)
  RCT_EXPORT_VIEW_PROPERTY(onDidNavigateBack, RCTBubblingEventBlock)
  