Add Turkish language support

src/components/language-switcher.tsx

@@ -15,6 +15,7 @@ const LOCALES: { code: string; label: string; lang: string }[] = [
   { code: "pt", label: "Português", lang: "pt" },
   { code: "pl", label: "Polski", lang: "pl" },
   { code: "sv", label: "Svenska", lang: "sv" },
+  { code: "tr", label: "Türkçe", lang: "tr" },
 ];
 
 export function LanguageSwitcher() {