composer update && add warning text

app/Nova/Resource.php

@@ -2,6 +2,7 @@
 
 namespace App\Nova;
 
+use DigitalCreative\ColumnToggler\ColumnTogglerTrait;
 use Illuminate\Database\Eloquent\Builder;
 use Illuminate\Http\Request;
 use Laravel\Nova\Http\Requests\NovaRequest;
@@ -9,6 +10,8 @@ use Laravel\Nova\Resource as NovaResource;
 
 abstract class Resource extends NovaResource
 {
+    use ColumnTogglerTrait;
+
     /**
      * Indicates whether Nova should check for modifications between viewing and updating a resource.
      *