[Administration] Dashboard : optimisation (suppression count users)

backend/controllers/SiteController.php

          */
         public function actionIndex()
         {
+
                 // commandes
                 $optionDashboardNumberDistributions = Producer::getConfig('option_dashboard_number_distributions') ;
                 $dashboardNumberDistributions = $optionDashboardNumberDistributions ? $optionDashboardNumberDistributions : 3 ;
                 ]);
 
                 // clients
-                $nbUsers = User::searchCount();
-
                 $usersArray = User::findBy()
                         ->orderBy('created_at DESC')
                         ->limit(5)
                         'distributionsArray' => $distributionsArray,
                         'ordersArray' => $ordersArray,
                         'usersArray' => $usersArray,
-                        'nbUsers' => $nbUsers,
                         'usersNegativeCredit' => $usersNegativeCredit,
                         'producer' => $producer,
                         'productsCount' => $productsCount,