Fix Snyk security findings: XSS, open redirect, hardcoded secrets, cookie security, MD5 replacement

src/components/language-switcher.tsx

@@ -32,7 +32,7 @@ export function LanguageSwitcher() {
 
   function switchLocale(code: string) {
     if (code === locale) return;
-    document.cookie = `NEXT_LOCALE=${code};path=/;max-age=31536000;samesite=lax;secure`;
+    document.cookie = `NEXT_LOCALE=${code};path=/;max-age=31536000;samesite=strict;secure`;
     startTransition(() => router.refresh());
     setOpen(false);
   }