Filament: Add Navigation Link to External URL

Sometimes you may want to add a simple link to your main sidebar, like "Terms and Conditions" or similar. It's easy to do in Filament.

You just need to add the navigationItems() method to the main panel() method in the AdminPanelProvider file.

app/Providers/Filament/AdminPanelProvider.php:

// ...
use Filament\Navigation\NavigationItem;
 
class AdminPanelProvider extends PanelProvider
{
    public function panel(Panel $panel): Panel
    {
        return $panel
            // ... other methods ->xxxxx()
            ->navigationItems([
                NavigationItem::make('About us')
                    ->url('https://laraveldaily.com', shouldOpenInNewTab: true)
                    ->icon('heroicon-o-link')
            ]);
    }
}