update pos consumer

src/app/core/validators/national-id.validator.ts

@@ -0,0 +1,12 @@
+import { ValidatorFn } from '@angular/forms';
+
+export function nationalIdValidator(): ValidatorFn {
+  return (control) => {
+    if (control.value === null || control.value === undefined || control.value === '') {
+      return null;
+    }
+    return control.value.length === 10 && /^[0-9]{10}$/.test(control.value)
+      ? null
+      : { nationalId: true };
+  };
+}