Fix VoiceOver focus staying in place after navigating

Gemini-iOS/BrowserNavigationController.swift

@@ -128,11 +128,13 @@ class BrowserNavigationController: UIViewController {
     
     private func onNavigate(_ operation: NavigationManager.Operation) {
         let newVC: BrowserWebViewController
+        var postAccessibilityNotification = false
         
         switch operation {
         case .go:
             backBrowserVCs.append(currentBrowserVC)
             newVC = BrowserWebViewController(navigator: navigator, url: navigator.currentURL)
+            postAccessibilityNotification = true
             
         case .reload:
             currentBrowserVC.reload()
@@ -163,6 +165,10 @@ class BrowserNavigationController: UIViewController {
             self.toolbarOffset = 0
         }
 
+        if postAccessibilityNotification {
+            // this moves focus to the nav bar, which isn't ideal, but it's better than nothing
+            UIAccessibility.post(notification: .screenChanged, argument: nil)
+        }
     }
     
     private let startEdgeNavigationSwipeDistance: CGFloat = 75

Gemini-iOS/BrowserWebViewController.swift

@@ -151,6 +151,7 @@ class BrowserWebViewController: UIViewController {
     func reload() {
         loaded = false
         loadedFallback = false
+        document = nil
         loadDocument()
     }
     

Gemini-iOS/NavigationBarView.swift

@@ -39,6 +39,7 @@ class NavigationBarView: UIView {
         textField = UITextField()
         textField.text = navigator.displayURL
         textField.borderStyle = .roundedRect
+        textField.textContentType = .URL
         textField.keyboardType = .URL
         textField.returnKeyType = .go
         textField.autocapitalizationType = .none