feat: remove 'Certificaciones' link from navigation menu

Author: mikerb95

src/components/Navbar.astro

@@ -7,7 +7,6 @@ const navLinks = [
   { href: "/lab", label: "Lab" },
   { href: "/notes", label: "Notas" },
   { href: "/security", label: "Seguridad" },
-  { href: "/certifications", label: "Certificaciones" },
   { href: "/log", label: "Log" },
 ];
 ---