Credit Michael (mbjboon82) for the Dutch review

Name the reviewer in both Dutch catalogs, FEATURES and ROADMAP, under both of his handles, and record that his wording stands.

(cherry picked from commit aaa86e96d66e2431a8c98467712a977d4035bf76)

web/src/locales/permissions/nl.ts

@@ -1,6 +1,9 @@
 import type { PermissionCatalog } from "@/lib/permissionLabels";
 
-/** Stalwart 0.16.22's permission labels in Dutch, keyed by permission name. Checked against source.json. */
+/**
+ * Stalwart 0.16.22's permission labels in Dutch, keyed by permission name. Checked against source.json.
+ * Reviewed and corrected by Michael (mbjboon82, also mbjboon-netizen), a native speaker, in September 2026.
+ */
 
 // Dutch speaker note: For example “Cluster Nodes Management” is a bit difficult to translate naturally into Dutch.
 // “Nodes” is plural, so the Dutch term should also be plural: “Clusterknooppunten”.