Removing the about section title + Fix notification tap crash (#778)

* Removing the about section title

updated tests

* fixed a bug that made the app crash when tapping

a notification in an unhandled state

* missing screenshots

ElementX/Sources/Application/AppCoordinator.swift

@@ -476,7 +476,7 @@ extension AppCoordinator: NotificationManagerDelegate {
             return
         }
 
-        userSessionFlowCoordinator?.tryDisplayingRoomScreen(roomId: content.threadIdentifier)
+        userSessionFlowCoordinator?.handleAppRoute(.room(roomID: content.threadIdentifier))
     }
 
     func handleInlineReply(_ service: NotificationManagerProtocol, content: UNNotificationContent, replyText: String) async {

ElementX/Sources/Application/Navigation/AppRouter.swift

@@ -0,0 +1,21 @@
+//
+// Copyright 2023 New Vector Ltd
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+import Foundation
+
+enum AppRoute {
+    case room(roomID: String)
+}