Prevented users from deleted in use codes

src/pages/(admin)/Lists/CodeList.tsx

@@ -89,11 +89,12 @@ export default function CodeList({user}: {user: User}) {
 	const defaultColumns = [
 		columnHelper.accessor("code", {
 			header: "",
-			cell: (info) => (
+			cell: (info) =>
+				!info.row.original.userId ? (
 					<Checkbox isChecked={selectedCodes.includes(info.getValue())} onChange={() => toggleCode(info.getValue())}>
 						{""}
 					</Checkbox>
-			),
+				) : null,
 		}),
 		columnHelper.accessor("code", {
 			header: "Code",