comment usage of props with old syntax

src/lib/components/NameItemEditor.svelte

@@ -10,6 +10,7 @@
 		token?: string;
 	}
 
+	// props, old syntax
 	export let list: ListItem[] = [];
 	export let currentName: string;
 	export let onSave: (n: string, o: string) => unknown = () => {};