fix pasteboardHasURLs, disable paste button based on it

apps/ios/Shared/AppDelegate.swift

@@ -38,7 +38,7 @@ class AppDelegate: NSObject, UIApplicationDelegate {
     }
 
     @objc func pasteboardChanged() {
-        ChatModel.shared.pasteboardHasURLs = UIPasteboard.general.hasStrings
+        ChatModel.shared.pasteboardHasURLs = UIPasteboard.general.hasURLs
     }
 
     func application(_ application: UIApplication, didRegisterForRemoteNotificationsWithDeviceToken deviceToken: Data) {

apps/ios/Shared/Model/ChatModel.swift

@@ -95,7 +95,7 @@ final class ChatModel: ObservableObject {
     @Published var draftChatId: String?
     // tracks keyboard height via subscription in AppDelegate
     @Published var keyboardHeight: CGFloat = 0
-    @Published var pasteboardHasURLs: Bool = UIPasteboard.general.hasStrings
+    @Published var pasteboardHasURLs: Bool = UIPasteboard.general.hasURLs
 
     var messageDelivery: Dictionary<Int64, () -> Void> = [:]
 

apps/ios/Shared/Views/ChatList/ChatListView.swift

@@ -279,7 +279,6 @@ struct ChatListSearchBar: View {
     @Binding var searchShowingSimplexLink: Bool
     @Binding var searchChatFilteredBySimplexLink: String?
     @State private var ignoreSearchTextChange = false
-    @State private var pasteboardHasString = false
     @State private var showScanCodeSheet = false
     @State private var alert: PlanAndConnectAlert?
     @State private var sheet: PlanAndConnectActionSheet?

apps/ios/Shared/Views/NewChat/NewChatView.swift

@@ -344,6 +344,7 @@ private struct ConnectView: View {
             } label: {
                 Text("Tap to paste link")
             }
+            .disabled(!ChatModel.shared.pasteboardHasURLs)
             .frame(maxWidth: .infinity, alignment: .center)
         } else {
             linkTextView(pastedLink)