Increase pending federation invitation when receiving invitation push

Signed-off-by: Marcel Müller <marcel-mueller@gmx.de>

NotificationServiceExtension/NotificationService.m

@@ -252,6 +252,8 @@ typedef void (^CreateConversationNotificationCompletionBlock)(void);
                             self.bestAttemptContent.categoryIdentifier = @"CATEGORY_FEDERATION";
                             self.bestAttemptContent.title = serverNotification.subject;
                             self.bestAttemptContent.body = serverNotification.message;
+
+                            [[NCDatabaseManager sharedInstance] increasePendingFederationInvitationForAccountId:account.accountId];
                         }
 
                         [self createConversationNotificationWithPushNotificationAndShow:pushNotification];