style(checklist): ajusta estilo do botao Tornar opcional

Altera para variant outline com estilo similar ao botao Acessar remoto

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

src/components/tickets/ticket-checklist-card.tsx

@@ -449,8 +449,9 @@ export function TicketChecklistCard({
                         <div className="flex shrink-0 items-center gap-1">
                           <Button
                             type="button"
-                            variant="ghost"
-                            className="h-9 px-2 text-xs text-neutral-700 hover:bg-slate-100 hover:text-neutral-900 hover:border hover:border-slate-300 active:bg-slate-200/70 focus-visible:bg-slate-100"
+                            variant="outline"
+                            size="sm"
+                            className="border-slate-300 bg-white text-xs font-medium text-slate-700 shadow-sm hover:border-slate-400 hover:bg-slate-50"
                             onClick={async () => {
                               if (!actorId) return
                               try {