Merge pull request #20 from ast3150/main

Prevent shimmer animation from affecting initial layout of the view

Sources/Shimmer/Shimmer.swift

@@ -85,7 +85,11 @@ public struct Shimmer: ViewModifier {
             .mask(LinearGradient(gradient: gradient, startPoint: startPoint, endPoint: endPoint))
             .animation(animation, value: isInitialState)
             .onAppear {
-                isInitialState = false
+                // Delay the animation until the initial layout is established
+                // to prevent animating the appearance of the view
+                DispatchQueue.main.asyncAfter(deadline: .now()) {
+                    isInitialState = false
+                }
             }
     }
 }