ajustes responsive login y btn añadir de administracion

apps/web/feactures/auth/components/user-auth-form.tsx

@@ -69,11 +69,11 @@ export default function UserAuthForm() {
     <>
       <Form {...form}>
 
-        <form className="p-6 md:p-8"  onSubmit={form.handleSubmit(onSubmit)}>
+        <form className="flex-none p-6 md:p-8"  onSubmit={form.handleSubmit(onSubmit)}>
             <div className="flex flex-col gap-6">
-              <div className="flex flex-col items-center text-center">
+              <div className="text-center">
                 <h1 className="text-2xl font-bold">Sistema para productores</h1>
-                <p className="text-balance text-muted-foreground">
+                <p className="text-balance text-muted-foreground hidden md:block">
                   Ingresa tus datos
                 </p>
               </div>