add route to delete a group, a message or an user

app/routes.php

@@ -37,18 +37,23 @@ return function (App $app) {
         $group->get('', ListUsersAction::class);
         $group->get('/{id}', ViewUserAction::class);
         $group->post('', CreateUserAction::class);
+        $group->delete('{id}', DeleteUserAction::class);
     });
 
     $app->group('/messages', function (Group $group) {
         $group->get('', ListMessagesAction::class);
         $group->get('/{id}', ViewMessageAction::class);
         $group->post('', CreateMessageAction::class);
+        $group->delete('{id}', DeleteMessageAction::class);
+
     });
 
     $app->group('/groups', function (Group $group) {
         $group->get('', ListGroupsAction::class);
         $group->get('/{id}', ViewGroupAction::class);
         $group->post('', CreateGroupAction::class);
+        $group->delete('{id}', DeleteGroupAction::class);
+
     });
 
     $app->group('/localisations', function (Group $group) {