IO-2484 Next Service KMs

Allow null and only display warning if not null and current milage is greater than service KMs

client/src/components/courtesy-car-form/courtesy-car-form.component.jsx

@@ -228,8 +228,7 @@ export default function CourtesyCarCreateFormComponent({ form, saveLoading }) {
             {() => {
               const nextservicekm = form.getFieldValue("nextservicekm");
               const mileageOver =
-                nextservicekm <= form.getFieldValue("mileage");
-
+                nextservicekm && nextservicekm <= form.getFieldValue("mileage");
               if (mileageOver)
                 return (
                   <Space direction="vertical" style={{ color: "tomato" }}>

hasura/migrations/1701307239375_alter_table_public_courtesycars_alter_column_nextservicekm/down.sql

@@ -0,0 +1,2 @@
+alter table "public"."courtesycars" alter column "nextservicekm" set not null;
+alter table "public"."courtesycars" alter column "nextservicekm" set default '0';

hasura/migrations/1701307239375_alter_table_public_courtesycars_alter_column_nextservicekm/up.sql

@@ -0,0 +1,2 @@
+ALTER TABLE "public"."courtesycars" ALTER COLUMN "nextservicekm" drop default;
+alter table "public"."courtesycars" alter column "nextservicekm" drop not null;