Fix brave/brave-ios#7200: Tx Confirmation auto-dismisses after creati…

…ng tx via asset details (brave/brave-ios#7203)

* Fix `WalletPromptView` dismissing views unintentionally. This was causing Transaction Confirmation to dismiss automatically after creating a Send/Swap transaction via Asset Details.

* Remove `buySendSwapDestination` check from `WalletPromptView` now that we only dismiss the presented view controller if we know we presented it.

Sources/BraveWallet/WalletPromptView.swift

@@ -6,6 +6,7 @@
 import SwiftUI
 import BraveUI
 import DesignSystem
+import Shared
 
 struct WalletPromptContentView<Content, Footer>: View where Content: View, Footer: View {
   let content: () -> Content
@@ -56,8 +57,6 @@ struct WalletPromptView<Content, Footer>: UIViewControllerRepresentable where Co
   var action: (Bool, UINavigationController?) -> Bool
   var content: () -> Content
   var footer: () -> Footer
-  @Environment(\.buySendSwapDestination)
-  private var buySendSwapDestination: Binding<BuySendSwapDestination?>
 
   func makeUIViewController(context: Context) -> UIViewController {
     .init()
@@ -82,13 +81,23 @@ struct WalletPromptView<Content, Footer>: UIViewControllerRepresentable where Co
           footer: footer
         )
       )
+      context.coordinator.presentedViewController = .init(controller)
       uiViewController.present(controller, animated: true)
     } else {
-      if buySendSwapDestination.wrappedValue == nil {
+      if let presentedViewController = context.coordinator.presentedViewController?.value,
+         presentedViewController == uiViewController.presentedViewController {
         uiViewController.presentedViewController?.dismiss(animated: true)
       }
     }
   }
+
+  class Coordinator {
+    var presentedViewController: WeakRef<UIViewController>?
+  }
+
+  func makeCoordinator() -> Coordinator {
+    Coordinator()
+  }
 }
 
 extension WalletPromptView where Content: View, Footer == EmptyView {