[App] Integrated the Feed List to the App with coordinators (#16)

This PR contains the work done to implement the integration of the `FeedListViewController` view controller in the `Feed` framework to the `App` target by using coordinators.

Reviewed-on: rock-n-code/app-reviews#16
Co-authored-by: Javier Cicchelli <javier@rock-n-code.com>
Co-committed-by: Javier Cicchelli <javier@rock-n-code.com>

App/Sources/App/AppDelegate.swift

@@ -6,6 +6,7 @@
 //  Copyright © 2020 ING. All rights reserved.
 //
 
+import ReviewsCoordinationKit
 import ReviewsFeed
 import UIKit
 
@@ -13,6 +14,7 @@ import UIKit
 class AppDelegate: UIResponder {
     
     // MARK: Properties
+    var coordinator: AppCoordinator?
     var window: UIWindow?
     
 }
@@ -26,9 +28,19 @@ extension AppDelegate: UIApplicationDelegate {
         didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?
     ) -> Bool {
         window = UIWindow(frame: UIScreen.main.bounds)
+        coordinator = .init(router: WindowRouter(window))
+
+        guard let coordinator else {
+            fatalError("AppCoordinator should have been instantiated")
+        }
         
-        window?.rootViewController = UINavigationController(rootViewController: FeedListViewController())
-        window?.makeKeyAndVisible()
+        coordinator.present(animated: false)
+        coordinator.present(
+            child: FeedListCoordinator(
+                router: StackRouter(coordinator.navigationController)
+            ),
+            animated: false
+        )
         
         return true
     }

App/Sources/Coordinators/AppCoordinator.swift

@@ -0,0 +1,40 @@
+//
+//  AppCoordinator.swift
+//  App
+//
+//  Created by Javier Cicchelli on 21/03/2024.
+//  Copyright © 2024 Röck+Cöde. All rights reserved.
+//
+
+import Foundation
+import ReviewsCoordinationKit
+import ReviewsFeed
+import UIKit
+
+final class AppCoordinator: Coordinator {
+
+    // MARK: Constants
+    let router: any Router
+    
+    // MARK: Properties
+    var children: [any Coordinator] = []
+    
+    lazy var navigationController = UINavigationController()
+    
+    // MARK: Initialisers
+    init(router: any Router) {
+        self.router = router
+    }
+    
+    // MARK: Functions
+    func present(
+        animated: Bool,
+        onDismiss: Router.OnDismissClosure? = nil
+    ) {
+        router.present(
+            navigationController,
+            animated: false
+        )
+    }
+    
+}