Only hide toolbar in debug log

Split view controller is shi**y enough not to handle navigation
bar properly on rotation.

When in compact mode, the navigation bar comes from the split
view controller. Hiding it and then going to regular (landscape),
will leave the master without the navigation bar and no way to
restore it.

Passepartout-iOS/Scenes/DebugLogViewController.swift

@@ -76,9 +76,10 @@ class DebugLogViewController: UIViewController {
     // MARK: Actions
     
     @objc private func toggleBars() {
-        let isHidden = navigationController?.isToolbarHidden ?? true
-        navigationController?.setNavigationBarHidden(!isHidden, animated: true)
-        navigationController?.setToolbarHidden(!isHidden, animated: true)
+        let nav = navigationController
+        let isHidden = nav?.isToolbarHidden ?? true
+//        nav?.setNavigationBarHidden(!isHidden, animated: true)
+        nav?.setToolbarHidden(!isHidden, animated: true)
     }
     
     @IBAction private func share(_ sender: Any?) {