fix: add missing lang texts, feat: add ukrainian lang, add flags

components/providers/intl-provider.tsx

@@ -15,6 +15,7 @@ import nlMessages from '@/locales/nl/common.json';
 import plMessages from '@/locales/pl/common.json';
 import ptMessages from '@/locales/pt/common.json';
 import ruMessages from '@/locales/ru/common.json';
+import ukMessages from '@/locales/uk/common.json';
 import zhMessages from '@/locales/zh/common.json';
 
 // Pre-loaded translations (loaded at build time, not runtime)
@@ -31,6 +32,7 @@ const ALL_MESSAGES = {
   pl: plMessages,
   pt: ptMessages,
   ru: ruMessages,
+  uk: ukMessages,
   zh: zhMessages,
 };