Actualizar imagen e iconos de marca

frontend/src/components/layout/Layout.jsx

@@ -83,11 +83,11 @@ export default function Layout({ children }) {
       <aside className={`sidebar ${mobileMenuOpen ? 'sidebar--mobile-open' : ''}`}>
         <div className="sidebar-brand">
           <div className="sidebar-brand-mark">
-            <FileText size={18} />
+            <img src="/app-icon-96.png" alt="LinkedSign" width="32" height="32" style={{ display: 'block' }} />
           </div>
           <div className="sidebar-brand-copy">
-            <span>FirmaDoc</span>
-            <small>Plataforma web</small>
+            <span>LinkedSign</span>
+            <small>Desarrollo de Soluciones</small>
           </div>
           <button
             type="button"
@@ -151,6 +151,10 @@ export default function Layout({ children }) {
       <main className="main-content">
         <div className="topbar">
           <div className="topbar-title">{currentTitle}</div>
+          <div className="topbar-brand-logo" aria-hidden="true">
+            <span className="topbar-brand-by">by</span>
+            <img src="/logoLinkedCorpTxtBlack.png" alt="LinkedCorp" />
+          </div>
         </div>
         {children}
       </main>