Cleanup usage of Leenooks\Carbon, change ServiceType to be consistent with Products/ Suppliers/

app/Models/Supplier/Broadband.php

@@ -8,7 +8,6 @@ use Illuminate\Support\Collection;
 use App\Interfaces\SupplierItem;
 use App\Models\Product\Broadband as ProductBroadband;
 
-// @todo does this need to extend Type? Perhaps have a SupplierType consistent with ServiceType.
 class Broadband extends Type implements SupplierItem
 {
 	protected $casts = [