/**
  * Displays all inventory items.
  *
  * @return \Illuminate\View\View
  */
 public function index()
 {
     $inventory = $this->presenter->tableNoVariants($this->inventory);
     $navbar = $this->presenter->navbar();
     return view('inventory.index', compact('inventory', 'navbar'));
 }
 /**
  * Returns a new navbar for the inventory table.
  *
  * @return \Illuminate\Support\Fluent
  */
 public function navbarInventory()
 {
     $presenter = new InventoryPresenter($this->form, $this->table);
     return $presenter->navbar();
 }