examples/simple-chatbot: move clients to client directory

examples/simple-chatbot/client/ios/SimpleChatbot/views/components/ToastModifier.swift

@@ -0,0 +1,31 @@
+import SwiftUI
+
+struct ToastModifier: ViewModifier {
+    var message: String?
+    var isShowing: Bool
+    
+    func body(content: Content) -> some View {
+        ZStack {
+            content
+            if isShowing, let message = message {
+                VStack {
+                    Text(message)
+                        .padding()
+                        .background(Color.black.opacity(0.7))
+                        .foregroundColor(.white)
+                        .cornerRadius(8)
+                        .transition(.slide)
+                        .padding(.top, 50)
+                    Spacer()
+                }
+                .animation(.easeInOut(duration: 0.5), value: isShowing)
+            }
+        }
+    }
+}
+
+extension View {
+    func toast(message: String?, isShowing: Bool) -> some View {
+        self.modifier(ToastModifier(message: message, isShowing: isShowing))
+    }
+}