Added 404, 500 & Dashboard Page

app/dashboard/page.tsx

@@ -12,10 +12,14 @@ export default async function DashboardPage() {
   return (
     <DashboardLayout user={user}>
       <div className="p-6">
-        <h1 className="text-3xl font-bold text-gray-900 dark:text-white mb-6">
-          Tableau de bord
+        <h1 className="text-3xl font-semibold text-cblack mb-1">
+          Content de vous revoir <span className="text-dyellow">{user.name || user.email}</span>
         </h1>
-        
+
+        <p className="text-sm text-cgray mb-6">
+          Bienvenue sur votre tableau de bord.
+        </p>
+
         <div className="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-3 gap-6">
           <div className="bg-white dark:bg-gray-800 rounded-lg shadow p-6">
             <h3 className="text-lg font-semibold text-gray-900 dark:text-white mb-2">