Update dashboard.html

apps/frontend/src/app/features/dashboard/dashboard.html

@@ -1,3 +1,4 @@
+<div class="dashboard">
   <header class="dashboard__header">
     <div>
       <h1>Vue d'ensemble</h1>
@@ -5,11 +6,6 @@
     </div>
     <button type="button" class="logout-button" (click)="onLogout()">Déconnexion</button>
   </header>
-<div class="dashboard">
-  <header class="dashboard__header">
-    <h1>Vue d'ensemble</h1>
-    <p class="dashboard__subtitle">Consommation instantanée du parc</p>
-  </header>
 
   @if (error(); as message) {
     <p class="banner-error" role="alert">{{ message }}</p>