[FEATURE] item table component for handling quantity

__Tasks:__
- [x] item table which shows current item data, as well as ability to input quantity
- [x] showing currently processed data
- [ ] gather feedback for my changes

__Informations:__

| Q             | A
| ------------- | ---
| Tests pass?   | aye
| Fixed tickets | -
| BC Breaks     | -
| Doc           | -

if (!$item) {
    return null;
} 
return $item;