fix(comparacao): eixo do gráfico de consumo em text-xs para passar na auditoria de design

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

components/ComparacaoGraficos.jsx

@@ -179,7 +179,7 @@ function BarrasConsumo({ titulo, campo, chips, t, mostrarBateria }) {
 						);
 					})}
 				</ul>
-				<div className="relative mt-1.5 h-4 text-[11px] text-muted" aria-hidden="true">
+				<div className="relative mt-1.5 h-4 text-xs text-muted" aria-hidden="true">
 					<div className="absolute inset-y-0 left-24 right-20 sm:left-28">
 						{["1", "10", "100", "1000 µA"].map((r, d) => (
 							<span key={r} className="absolute -translate-x-1/2 whitespace-nowrap" style={{ left: `${(d / 3) * 100}%` }}>{r}</span>