ladill-events/app/Providers/AppServiceProvider.php

<?php

namespace App\Providers;

use App\Models\QrCode;
use App\Policies\QrCodePolicy;
use Illuminate\Support\Facades\Gate;
use Illuminate\Support\ServiceProvider;
use App\Support\MobileTopbar;
use Illuminate\Support\Facades\View;

class AppServiceProvider extends ServiceProvider
{
    public function register(): void
    {
        //
    }

    public function boot(): void
    {
        Gate::policy(QrCode::class, QrCodePolicy::class);
        View::composer(['partials.topbar', 'partials.topbar-qr'], function ($view) {
            $view->with(MobileTopbar::resolve());
        });

    }
}