Added navigation_back event listener at LoyaltyHistoryVC

@@ -74,6 +74,13 @@ import SwiftEventBus
             }
         }
         
+        SwiftEventBus.onBackgroundThread(self, name: "navigation_back") { result in
+
+            DispatchQueue.main.async {
+                self.navigationController?.popViewController(animated: true)
+            }
+        }
+        
 //        setBackButton()
         setBackButton("ic_close_3")
         setNavigationTitle("Ιστορικό")