fix: address PR review comments

- Add Korean to features page language list
- Add ko locale support to getDateFnsLocale() function
- Add changelog entry for Korean language support

CHANGELOG.md

@@ -5,6 +5,12 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## Unreleased
+
+### Added
+
+- Set up the language localization for Korean (`ko`)
+
 ## 2.227.0 - 2026-01-02
 
 ### Changed

apps/client/src/app/pages/features/features-page.html

@@ -260,7 +260,7 @@
                 <p class="m-0">
                   Use Ghostfolio in multiple languages: English,
                   <!-- Català, -->
-                  Chinese, Dutch, French, German, Italian, Polish, Portuguese,
+                  Chinese, Dutch, French, German, Italian, Korean, Polish, Portuguese,
                   Spanish and Turkish
                   <!-- and Ukrainian -->
                   are currently supported.

libs/common/src/lib/helper.ts

@@ -11,7 +11,7 @@ import {
   parseISO,
   subDays
 } from 'date-fns';
-import { ca, de, es, fr, it, nl, pl, pt, tr, uk, zhCN } from 'date-fns/locale';
+import { ca, de, es, fr, it, ko, nl, pl, pt, tr, uk, zhCN } from 'date-fns/locale';
 
 import {
   DEFAULT_CURRENCY,
@@ -184,6 +184,8 @@ export function getDateFnsLocale(aLanguageCode: string) {
     return fr;
   } else if (aLanguageCode === 'it') {
     return it;
+  } else if (aLanguageCode === 'ko') {
+    return ko;
   } else if (aLanguageCode === 'nl') {
     return nl;
   } else if (aLanguageCode === 'pl') {