[Backend] Tickets : correctif messages non lus

common/logic/Ticket/Ticket/Repository/TicketRepository.php

         $this->loadQuery(TicketRepositoryQuery::class);
         $this->ticketSolver = $this->loadService(TicketSolver::class);
     }
-
-    /**
-     * Retourne les options de base nécessaires à la fonction de recherche.
-     */
+    
     public function getDefaultOptionsSearch(): array
     {
         return [

common/logic/Ticket/Ticket/Service/TicketSolver.php

     public function isTicketUnread(Ticket $ticket, User $user): int
     {
         $ticketUser = $this->getTicketUser($ticket, $user);
+
         if($ticketUser) {
             foreach($ticket->ticketMessages as $ticketMessage) {
                 if($this->isTicketMessageUnread($ticketMessage, $ticketUser)) {
                     return true;
                 }
             }
+            return false;
         }
 
-        return false;
+        return true;
     }
 
     public function getFirstTicketMessageUnread(Ticket $ticket, User $user): ?TicketMessage
     {
         $ticketUser = $this->getTicketUser($ticket, $user);
+
         if($ticketUser) {
             foreach($ticket->ticketMessages as $ticketMessage) {
                 if($this->isTicketMessageUnread($ticketMessage, $ticketUser)) {
             }
         }
 
-        return null;
+        return $ticket->ticketMessages[0];
     }
 
     public function countTicketsUnreadByUserFromArray(array $ticketsArray, User $user): int