如何在Laravel 7中使用菜单布局文件中的计数功能显示项目总数？

php artisan make:service ProjectCountService

namespace App\Services;

use App\Models\Project;

class ProjectCountService
{
    public function getCount()
    {
        return Project::count();
    }
}

namespace App\Providers;

use Illuminate\Support\ServiceProvider;
use App\Services\ProjectCountService;

class AppServiceProvider extends ServiceProvider
{
    public function register()
    {
        $this->app->singleton(ProjectCountService::class);
    }

    // ...
}

php artisan make:view-component ProjectCount

namespace App\View\Components;

use Illuminate\View\Component;
use App\Services\ProjectCountService;

class ProjectCount extends Component
{
    public $count;

    public function __construct(ProjectCountService $projectCountService)
    {
        $this->count = $projectCountService->getCount();
    }

    public function render()
    {
        return view('components.project-count');
    }
}

<span>项目总数: {{ $count }}</span>

<x-project-count />