Fix a misleading class name

[mkwsra]

I am pretty sure that this is not right.

• Explanation: You cannot use Blade component as stated in the docs and use variable usch public $showDropdown = false; and function of it within the parent Livewire component.

I tested it and it's not working so perhaps this will help other people as well.

Thanks again and again for the amazing work of Livewire & Alpine ⭐️