Use swift-navigation helpers for presenting alerts and action sheets (#3623)

Author: juliensagot

Sources/ComposableArchitecture/UIKit/AlertStateUIKit.swift

@@ -28,18 +28,7 @@
     public convenience init<Action>(
       store: Store<AlertState<Action>, Action>
     ) {
-      let state = store.currentState
-      self.init(
-        title: String(state: state.title),
-        message: state.message.map { String(state: $0) },
-        preferredStyle: .alert
-      )
-      for button in state.buttons {
-        addAction(UIAlertAction(button, action: { _ = $0.map(store.send) }))
-      }
-      if state.buttons.isEmpty {
-        addAction(UIAlertAction(title: "OK", style: .cancel))
-      }
+      self.init(state: store.currentState) { _ = $0.map(store.send) }
     }
 
     /// Creates a `UIAlertController` from a ``Store`` focused on confirmation dialog state.
@@ -63,19 +52,7 @@
     public convenience init<Action>(
       store: Store<ConfirmationDialogState<Action>, Action>
     ) {
-      let state = store.currentState
-      self.init(
-        title: String(state: state.title),
-        message: state.message.map { String(state: $0) },
-        preferredStyle: .actionSheet
-      )
-      for button in state.buttons {
-        addAction(UIAlertAction(button, action: { _ = $0.map(store.send) }))
-      }
-      if state.buttons.isEmpty {
-        addAction(UIAlertAction(title: "OK", style: .cancel))
-      }
+      self.init(state: store.currentState) { _ = $0.map(store.send) }
     }
-
   }
 #endif