Moving Global Search to Sidebar

Since Filament v4.1, moving search to the sidebar can be done by setting it in the Panel Provider. Check the official documentation

To show search in the sidebar, we use the SIDEBAR_NAV_START Render Hook to add a GlobalSearch Livewire component.

app/Providers/AppServiceProvider.php:

use Filament\View\PanelsRenderHook;
use Illuminate\Support\Facades\Blade;
use Illuminate\Support\ServiceProvider;
use Filament\Support\Facades\FilamentView;
 
class AppServiceProvider extends ServiceProvider
{
    // ...
 
    public function boot(): void
    {
        FilamentView::registerRenderHook(
            PanelsRenderHook::SIDEBAR_NAV_START,
            fn (): string => Blade::render('@livewire(Filament\Livewire\GlobalSearch::class, [\'lazy\' => true])'),
        );
    }
}

To fix the styling issue, a custom theme must be created and registered.