conversation: fix search bar behaviour

Pressing the search button on the keyboard should
preserve filtered results until 'Cancel' is pressed.

Change-Id: Id2a95ceb6f699ff8dd808d4e83cb12e945c27e5b

Ring/Ring/Features/Conversations/SmartList/SwiftUI/Views/SearchBar.swift

@@ -70,7 +70,6 @@ private struct SearchBar: UIViewControllerRepresentable {
 
             searchController.searchResultsUpdater = self
             searchController.searchBar.searchTextField.addTarget(self, action: #selector(searchBarTextDidBeginEditing(_:)), for: .editingDidBegin)
-            searchController.searchBar.searchTextField.addTarget(self, action: #selector(searchBarTextDidEndEditing(_:)), for: .editingDidEnd)
             searchController.hidesNavigationBarDuringPresentation = true
             searchController.obscuresBackgroundDuringPresentation = false
             searchController.searchBar.searchTextField.accessibilityIdentifier = SmartListAccessibilityIdentifiers.searchBarTextField
@@ -97,15 +96,6 @@ private struct SearchBar: UIViewControllerRepresentable {
             }
         }
 
-        @objc
-        private func searchBarTextDidEndEditing(_ textField: UITextField) {
-            DispatchQueue.main.async {
-                withAnimation {
-                    self.isActive = false
-                }
-            }
-        }
-
         func updateSearchResults(for searchController: UISearchController) {
             // DispatchQueue.main.async is important to avoid "Modifying state during view update, this will cause undefined behavior." error
             DispatchQueue.main.async {