EasyAdmin: Configure search fields

Update the configureCrud method to look something like this:

class ClientCrudController extends AbstractCrudController
  #[\Override] 
  public function configureCrud(Crud $crud): Crud
  {
      return parent::configureCrud($crud)
          ->setEntityLabelInSingular('Client')
          ->setEntityLabelInPlural('Clients')
          ->setDefaultSort(['id' => 'DESC'])
          ->setSearchFields([
              'id',
              'token',
              'company.name',
              'firstName',
              'lastName',
          ]);
  }
}

By default, EasyAdmin will search all of the entity’s scalar fields which means it won’t search for associations like company.name from the above.