fix: version 2.8.5 -- boton para volver a ocultar el catalogo de marcas

Al "+" para desplegar los logos de marca le faltaba su contraparte: un boton "-" junto al
titulo del bloque para volver a colapsarlo.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

frontend/src/pages/Contrasenas/ContrasenasPage.jsx

@@ -1,7 +1,7 @@
 import { useEffect, useState } from 'react';
 import { useNavigate } from 'react-router-dom';
 import {
-  Plus, Trash2, Eye, EyeOff, Copy, Pencil, Save, X, RefreshCw, ShieldAlert, MoreVertical,
+  Plus, Minus, Trash2, Eye, EyeOff, Copy, Pencil, Save, X, RefreshCw, ShieldAlert, MoreVertical,
   Mail, Globe, Server, Database, Cloud, Shield, Lock, Wifi, CreditCard, Building2, Printer,
   Smartphone, KeyRound, HardDrive, Router, UserCog,
 } from 'lucide-react';
@@ -361,18 +361,31 @@ export default function ContrasenasPage() {
               ))}
             </div>
             {showBrandIcons ? (
-              <div className="vault-icon-picker vault-icon-picker-brands">
-                {Object.entries(BRAND_ICONS).map(([key, icon]) => (
+              <div>
+                <div className="vault-icon-brands-header">
+                  <span className="text-muted" style={{ fontSize: '.72rem' }}>{t('vault_icon_more')}</span>
                   <button
                     type="button"
-                    key={key}
-                    className={`vault-icon-option brand ${form.iconKey === key ? 'selected' : ''}`}
-                    title={icon.title}
-                    onClick={() => setForm((f) => ({ ...f, iconKey: key }))}
+                    className="icon-btn"
+                    title={t('vault_icon_less')}
+                    onClick={() => setShowBrandIcons(false)}
                   >
-                    <BrandSvg icon={icon} size={16} />
+                    <Minus size={14} />
                   </button>
-                ))}
+                </div>
+                <div className="vault-icon-picker vault-icon-picker-brands">
+                  {Object.entries(BRAND_ICONS).map(([key, icon]) => (
+                    <button
+                      type="button"
+                      key={key}
+                      className={`vault-icon-option brand ${form.iconKey === key ? 'selected' : ''}`}
+                      title={icon.title}
+                      onClick={() => setForm((f) => ({ ...f, iconKey: key }))}
+                    >
+                      <BrandSvg icon={icon} size={16} />
+                    </button>
+                  ))}
+                </div>
               </div>
             ) : (
               <button