Merge branch 'pr839tmp' into feat/korean-locale

# Conflicts:
#	CHANGELOG.md

src/app/api/admin/notifications/test/route.ts

@@ -69,7 +69,8 @@ function isLocale(value: string | null | undefined): value is Locale {
     value === "fr" ||
     value === "es" ||
     value === "it" ||
-    value === "pl"
+    value === "pl" ||
+    value === "ko"
   );
 }