fix(ui): улучшить контраст и доступность прокрутки

app/(main)/certificates/page.tsx

@@ -199,7 +199,7 @@ function CertPartReference() {
               <p className="font-sans font-semibold text-foreground/80 mb-1.5 text-[11px] uppercase tracking-wide">
                 {b.title}
               </p>
-              <pre className="bg-zinc-950 rounded-md p-2.5 text-zinc-300 text-[11px] leading-relaxed overflow-x-auto whitespace-pre">
+              <pre tabIndex={0} role="region" aria-label={"Команды RouterOS: " + b.title} className="bg-zinc-950 rounded-md p-2.5 text-zinc-300 text-[11px] leading-relaxed overflow-x-auto whitespace-pre focus-visible:outline-2 focus-visible:outline-ring focus-visible:outline-offset-2">
                 {b.lines.join("\n")}
               </pre>
             </div>