Fixed an issue with rapidly going to/from the background

• Fixed an issue where leaving and returning to the app rapidly could leave the app in a state when the database and network are inaccessible
• Fixed an issue where bad nodes might not get dropped from the pool (libSession update)

LibSession-Util

@@ -1 +1 @@
-Subproject commit fdfd9dbb698e4ce6e6e08dd1b85eec428ab2077e
+Subproject commit c9a98dbb2e2ef45aa85075576247d61355269e1c

Session/Meta/AppDelegate.swift

@@ -211,7 +211,7 @@ class AppDelegate: UIResponder, UIApplicationDelegate, UNUserNotificationCenterD
         
         // Stop all jobs except for message sending and when completed suspend the database
         JobRunner.stopAndClearPendingJobs(exceptForVariant: .messageSend, using: dependencies) {
-            if !self.hasCallOngoing() {
+            if !self.hasCallOngoing() && Singleton.hasAppContext && Singleton.appContext.isInBackground {
                 LibSession.suspendNetworkAccess()
                 Storage.suspendDatabaseAccess()
                 Log.info("[AppDelegate] completed network and database shutdowns.")