Merge pull request #433 from Navipro70/fix/ios-default-placeholder-background

fix(iOS): clear default NukeUI placeholder background

Author: duguyihou

ios/TurboImageView.swift

@@ -166,6 +166,8 @@ final class TurboImageView : UIView {
   override init(frame: CGRect) {
     super.init(frame: frame)
     addSubview(lazyImageView)
+    // Clear the default NukeUI placeholder (has secondarySystemBackground color)
+    lazyImageView.placeholderView = nil
     layer.masksToBounds = true
     lazyImageView.translatesAutoresizingMaskIntoConstraints = false
     NSLayoutConstraint.activate([
@@ -466,4 +468,3 @@ fileprivate extension TurboImageView {
     #endif
   }
 }
-