Be able to update orders up to 10 days after the deadline

It used to be 5 days.

api/db/order.go

@@ -10,7 +10,7 @@ import (
 )
 
 const (
-	updateOrderDuration = 5 * 24 * time.Hour
+	updateOrderDuration = 10 * 24 * time.Hour
 )
 
 type Order struct {