Show ElementCalls in the system Recents list and allow deep linking back into a call from there

ElementX/Sources/Application/AppCoordinator.swift

@@ -17,6 +17,7 @@
 import AnalyticsEvents
 import BackgroundTasks
 import Combine
+import Intents
 import MatrixRustSDK
 import SwiftUI
 import Version
@@ -236,6 +237,20 @@ class AppCoordinator: AppCoordinatorProtocol, AuthenticationFlowCoordinatorDeleg
         return false
     }
     
+    func handleUserActivity(_ userActivity: NSUserActivity) {
+        // `INStartVideoCallIntent` is to be replaced with `INStartCallIntent`
+        // but calls from Recents still send it ¯\_(ツ)_/¯
+        guard let intent = userActivity.interaction?.intent as? INStartVideoCallIntent,
+              let contact = intent.contacts?.first,
+              let roomIdentifier = contact.personHandle?.value else {
+            MXLog.error("Failed retrieving information from userActivity: \(userActivity)")
+            return
+        }
+        
+        MXLog.info("Starting call in room: \(roomIdentifier)")
+        handleAppRoute(AppRoute.call(roomID: roomIdentifier))
+    }
+    
     // MARK: - AuthenticationFlowCoordinatorDelegate
     
     func authenticationFlowCoordinator(didLoginWithSession userSession: UserSessionProtocol) {