change test to slider for disk create

app/UI/Disk/Forms/UpdateForm.php

@@ -55,9 +55,9 @@ class UpdateForm extends BaseForm implements ClientArea
         //entity id
         $this->addField(new Hidden("id"));
         //size
-        $vm = \ModulesGarden\ProxmoxAddon\Core\Helper\sl('Vm')->getVm();
+/*        $vm = \ModulesGarden\ProxmoxAddon\Core\Helper\sl('Vm')->getVm();
         $hdd = $vm->getHardDiskRepostiory()->findById($this->id);
-        $size = $hdd->getGb();
+        $size = $hdd->getGb(); */
         $this->resourceManager = new ResourceManager();
         $field = new Range('additionalDiskSize', 20, $this->resourceManager->disk()->free());
         $field->addValidator(new DiskSizeValidator('additionalDiskSize',true));