Fix messages not appearing when presenting ChatChannelView with UIKit on iOS 26.1 (#1007)

Author: laevandus

Sources/StreamChatSwiftUI/ChatChannel/ChatChannelView.swift

@@ -183,13 +183,6 @@ public struct ChatChannelView<Factory: ViewFactory>: View, KeyboardReadable {
             viewModel.reactionsShown = false
             messageDisplayInfo = nil
         }
-        .onChange(of: presentationMode.wrappedValue, perform: { newValue in
-            if newValue.isPresented == false {
-                viewModel.onViewDissappear()
-            } else {
-                viewModel.setActive()
-            }
-        })
         .background(
             Color(colors.background).background(
                 TabBarAccessor { _ in
@@ -221,9 +214,3 @@ public struct ChatChannelView<Factory: ViewFactory>: View, KeyboardReadable {
         return bottomPadding
     }
 }
-
-extension PresentationMode: Equatable {
-    public static func == (lhs: PresentationMode, rhs: PresentationMode) -> Bool {
-        lhs.isPresented == rhs.isPresented
-    }
-}