feat: premenovanie newslettera v zozname a vyber nazvu pri duplikovani

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

src/components/editor/TopBar.tsx

@@ -142,7 +142,7 @@ export const TopBar: React.FC<TopBarProps> = ({
               <h1 className="text-xs md:text-sm font-bold text-gray-900 leading-tight max-w-[180px] md:max-w-xs truncate group-hover:text-blue-600">
                 {campaign.title || 'COOP Jednota Newsletter'}
               </h1>
-              <Edit2 className="w-3 h-3 text-gray-400 opacity-0 group-hover:opacity-100 transition-opacity" />
+              <Edit2 className="w-3 h-3 text-gray-400 group-hover:text-blue-600 transition-colors" />
             </div>
           )}