Fix autocomplete context crud controller for embedded forms

[zorn-v]

If you have embedded form with association autocomplete field and have defined setQueryBuilder there, then it will not applied as crudControllerFqcn comes from request now.
But request has info about parent controller, not embedded. So configurator can not find field with configured query builder and it does not applied.

[zorn-v]

As workaround for now

# config/services.yaml
services:
#...
    App\EasyAdmin\Field\Configurator\AssociationConfigurator:
        tags:
            - { name: 'ea.field_configurator', priority: -1 }

<?php

namespace App\EasyAdmin\Field\Configurator;

use EasyCorp\Bundle\EasyAdminBundle\Config\Option\EA;
use EasyCorp\Bundle\EasyAdminBundle\Context\AdminContext;
use EasyCorp\Bundle\EasyAdminBundle\Contracts\Field\FieldConfiguratorInterface;
use EasyCorp\Bundle\EasyAdminBundle\Dto\EntityDto;
use EasyCorp\Bundle\EasyAdminBundle\Dto\FieldDto;
use EasyCorp\Bundle\EasyAdminBundle\Field\AssociationField;

/** fix EA autocomplete bug in embedded forms */
final class AssociationConfigurator implements FieldConfiguratorInterface
{
    public function supports(FieldDto $field, EntityDto $entityDto): bool
    {
        return AssociationField::class === $field->getFieldFqcn();
    }

    public function configure(FieldDto $field, EntityDto $entityDto, AdminContext $context): void
    {
        if (true === $field->getCustomOption(AssociationField::OPTION_AUTOCOMPLETE)) {
            $endpointUrl = $field->getFormTypeOption('attr.data-ea-autocomplete-endpoint-url');
            [$path, $query] = explode('?', $endpointUrl);
            parse_str($query, $data);
            $data['autocompleteContext'][EA::CRUD_CONTROLLER_FQCN] = $context->getCrudControllers()->findCrudFqcnByEntityFqcn($entityDto->getFqcn());
            $endpointUrl = $path.'?'.http_build_query($data);
            $field->setFormTypeOption('attr.data-ea-autocomplete-endpoint-url', $endpointUrl);
        }
    }
}