Fix: Redirect to landing page

Change the "Retour" button on the AuthForm page to navigate to the landing page.

Author: lovable-dev[bot]

src/components/AuthForm.tsx

@@ -1,3 +1,4 @@
+
 import { useState } from 'react';
 import { Button } from '@/components/ui/button';
 import { Input } from '@/components/ui/input';
@@ -70,16 +71,16 @@ export const AuthForm = () => {
     }
   };
 
-  const handleBackToDashboard = () => {
-    navigate('/dashboard');
+  const handleBackToLanding = () => {
+    navigate('/');
   };
 
   return (
     <div className="min-h-screen bg-gradient-to-br from-blue-50/50 via-white to-purple-50/50 flex items-center justify-center p-4 relative">
       {/* Bouton retour */}
       <Button
         variant="ghost"
-        onClick={handleBackToDashboard}
+        onClick={handleBackToLanding}
         className="absolute top-6 left-6 text-slate-600 hover:text-slate-900"
       >
         <ArrowLeft className="mr-2 h-4 w-4" />