feat: custom action class

[yajra]

This PR aims to add the following ability for Editor.

• Delegate action to its own class.

Editor

    protected array $customActions = [
        'remove2fa' => Actions\Remove2FA::class,
        'changePassword',
    ];

Action

use Illuminate\Http\JsonResponse;
use Illuminate\Http\Request;

class Remove2FA
{
    public function handle(Request $request): JsonResponse
    {
        return new JsonResponse([
            'message' => '2FA has been removed successfully.',
        ]);
    }
}

• Change toJson() visibility to public
• Change process() method and made the $request param optional

public function store(UsersEditor $editor)
{
  return $editor->process();
}