Add tap on search to focus search field on iOS

Model/Search/SearchModel.swift

@@ -16,9 +16,23 @@ final class SearchModel: ObservableObject {
     @Published var querySuggestions = [String]()
     private var suggestionsDebouncer = Debouncer(.milliseconds(200))
 
+    @Published var focused = false
+
     var accounts: AccountsModel { .shared }
     private var resource: Resource!
 
+    init() {
+        #if os(iOS)
+            addKeyboardDidHideNotificationObserver()
+        #endif
+    }
+
+    deinit {
+        #if os(iOS)
+            removeKeyboardDidHideNotificationObserver()
+        #endif
+    }
+
     var isLoading: Bool {
         resource?.isLoading ?? false
     }
@@ -136,4 +150,18 @@ final class SearchModel: ObservableObject {
                 }
             }
     }
+
+    #if os(iOS)
+        private func addKeyboardDidHideNotificationObserver() {
+            NotificationCenter.default.addObserver(self, selector: #selector(onKeyboardDidHide), name: UIResponder.keyboardDidHideNotification, object: nil)
+        }
+
+        @objc func onKeyboardDidHide() {
+            focused = false
+        }
+
+        private func removeKeyboardDidHideNotificationObserver() {
+            NotificationCenter.default.removeObserver(self, name: UIResponder.keyboardDidHideNotification, object: nil)
+        }
+    #endif
 }