Fix change payment method button being visible when order is paid

Author: MarkNjunge

app/src/main/java/com/marknkamau/justjava/ui/orderDetail/OrderDetailActivity.kt

@@ -83,6 +83,7 @@ class OrderDetailActivity : AppCompatActivity() {
                     if (orderId == orderId) {
                         Timber.d("The current order has been paid for!")
                         btnPayOrder.visibility = View.GONE
+                        btnChangePaymentMethod.visibility = View.GONE
                         tv_order_paymentStatus.text = PaymentStatus.PAID.s
                         toast("Payment received")
                     }