EC: handle back navigation from the webview

EC: remove native header

updated element call to 0.13.0-rc1

ElementX/Sources/Screens/CallScreen/View/CallScreen.swift

@@ -16,21 +16,10 @@ struct CallScreen: View {
     @ObservedObject var context: CallScreenViewModel.Context
     
     var body: some View {
-        NavigationStack {
-            content
-                .frame(maxWidth: .infinity, maxHeight: .infinity)
-                .background(Color.compound.bgCanvasDefault.ignoresSafeArea())
-                .navigationBarTitleDisplayMode(.inline)
-                .toolbar {
-                    ToolbarItem(placement: .cancellationAction) {
-                        Button { context.send(viewAction: .navigateBack) } label: {
-                            Image(systemSymbol: .chevronBackward)
-                                .fontWeight(.semibold)
-                        }
-                    }
-                }
-        }
-        .alert(item: $context.alertInfo)
+        content
+            .frame(maxWidth: .infinity, maxHeight: .infinity)
+            .background(Color.compound.bgCanvasDefault.ignoresSafeArea())
+            .alert(item: $context.alertInfo)
     }
     
     @ViewBuilder
@@ -185,6 +174,8 @@ private struct CallView: UIViewRepresentable {
             case .onOutputDeviceSelect:
                 guard let deviceID = message.body as? String else { return }
                 viewModelContext?.send(viewAction: .outputDeviceSelected(deviceID: deviceID))
+            case .onBackButtonPressed:
+                viewModelContext?.send(viewAction: .navigateBack)
             }
         }
         
@@ -354,8 +345,6 @@ struct CallScreen_Previews: PreviewProvider {
     }()
     
     static var previews: some View {
-        NavigationStack {
-            CallScreen(context: viewModel.context)
-        }
+        CallScreen(context: viewModel.context)
     }
 }