update dpo

src/main/java/com/example/afrishop_v3/controllers/DpoPayController.java

@@ -121,7 +121,7 @@ public class DpoPayController extends Controller {
                 System.out.println("this.user===========" + this.user);
                 System.out.println("user================" + user);
                 /**
-                 * Because I let go of this API (DPO /notify),
+                 * Because I let go of this API (DPO /notify) permission,
                  * so now the user is anonymous, so there is no way to send messages to the user?
                  */
                 if (user != null && user.hasFcm()) {