Introduce initial UI for connecting to networks

Apple/App/BurrowApp.swift

@@ -1,21 +1,13 @@
 import SwiftUI
 
-@main
+#if !os(macOS)
 @MainActor
+@main
 struct BurrowApp: App {
-    static let tunnel = Tunnel { manager, proto in
-        proto.serverAddress = "hackclub.com"
-        manager.localizedDescription = "Burrow"
-    }
-
-    #if os(macOS)
-    @NSApplicationDelegateAdaptor(AppDelegate.self)
-    var delegate
-    #endif
-
     var body: some Scene {
         WindowGroup {
-            TunnelView(tunnel: Self.tunnel)
+            BurrowView()
         }
     }
 }
+#endif