Dark mode shortcut

App/AppDelegate.swift

@@ -105,6 +105,13 @@ class AppDelegate: UIResponder, UIApplicationDelegate {
                 title: "Refresh",
                 action: #selector(ShortcutResponder.refresh)
             ),
+            
+            // Toggle Dark Mode
+            UIKeyCommand(
+                modifiers: [.command], input: "D",
+                title: "Toggle Dark Mode",
+                action: #selector(ShortcutResponder.toggleDarkMode)
+            ),
         ]
     }