docs: translation docs

src/components/Navbar/index.tsx

@@ -43,7 +43,9 @@ const Navbar: React.FC<NavbarProps> = ({
   };
 
   const handleLanguageChange = (event: any) => {
-    i18n.changeLanguage(event.target.value);
+    const newLanguage = event.target.value;
+    i18n.changeLanguage(newLanguage);
+    localStorage.setItem('lang', newLanguage);
   };
 
   const navItems: { label: string; path: string }[] = [

src/i18n/index.ts

@@ -42,7 +42,7 @@ export type FullI18nKey = {
 }[I18nNamespaces];
 
 i18n.use(initReactI18next).init({
-  lng: 'en',
+  lng: localStorage.getItem('lang') || 'en',
   fallbackLng: 'en',
   debug: false,
   backend: useLocize