Fix bug in arrow key navigation where focus could get stolen from the timeline

iOS/Detail/DetailViewController.swift

@@ -31,10 +31,6 @@ class DetailViewController: UIViewController {
 		return keyboardManager.keyCommands
 	}
 	
-	override var canBecomeFirstResponder: Bool {
-		return true
-	}
-
 	deinit {
 		webView.removeFromSuperview()
 		DetailViewControllerWebViewProvider.shared.enqueueWebView(webView)

iOS/SceneCoordinator.swift

@@ -819,10 +819,10 @@ class SceneCoordinator: NSObject, UndoableCommandRunner, UnreadCountProvider {
 	}
 	
 	func navigateToTimeline() {
-		masterTimelineViewController?.focus()
 		if currentArticleIndexPath == nil {
 			selectArticle(IndexPath(row: 0, section: 0))
 		}
+		masterTimelineViewController?.focus()
 	}
 	
 	func navigateToDetail() {