Update languages in sources

resources/lang/en/languages.php

@@ -13,12 +13,17 @@ return [
     'browser_preference' => 'Browser preference',
     'en' => 'English (English)',
     'fr' => 'Français (French)',
-    'de' => 'Deutsch (German)',
-    'es' => 'Español (Spanish)',
-    'zh' => '简体中文 (Chinese Simplified)',
-    'ru' => 'Русский (Russian)',
     'bg' => 'Български (Bulgarian)',
-    'ja' => '日本語 (Japanese)',
+    'zh-CN' => '简体中文 (Chinese Simplified)',
+    'da' => 'Dansk (Danish)',
+    'nl' => 'Nederlands (Dutch)',
+    'de' => 'Deutsch (German)',
     'hi' => 'हिंदी (Hindi)',
+    'it' => 'Italiano (Italian)',
+    'ja' => '日本語 (Japanese)',
+    'ko' => '한국어 (Korean)',
+    'pt-BR' => 'Português (Portuguese, Brazilian)',
+    'ru' => 'Русский (Russian)',
+    'es-ES' => 'Español (Spanish)',
     'tr' => 'Türkçe (Turkish)',
 ];