Show wishlist item against each customer on Admin Grid

I am trying to display wishlist items against each customer. And I am unable to display the multiple products in the grid. Instead of showing wishlist_id, I want to show wishlist product or product id. Here is the code

VendorProjectUiComponentListingColumnsFrontendWishlistProduct.php

<?php
namespace VendorProjectUiComponentListingColumnsFrontend;

use MagentoFrameworkUrlInterface;
use MagentoFrameworkViewElementUiComponentContextInterface;
use MagentoFrameworkViewElementUiComponentFactory;
use MagentoUiComponentListingColumnsColumn;

/**
 * Class OrderLink.
 */
class WishlistProduct extends Column
{
    /**
     * @var UrlInterface
     */
    protected $urlBuilder;

    /**
     * Constructor.
     *
     * @param ContextInterface   $context
     * @param UiComponentFactory $uiComponentFactory
     * @param UrlInterface       $urlBuilder
     * @param array              $components
     * @param array              $data
     */
    public function __construct(
        ContextInterface $context,
        UiComponentFactory $uiComponentFactory,
        UrlInterface $urlBuilder,
        MagentoWishlistModelWishlist $wishlist,
        array $components = [],
        array $data = []
    ) {
        $this->urlBuilder = $urlBuilder;
        $this->wishlist = $wishlist;
        parent::__construct($context, $uiComponentFactory, $components, $data);
    }

    public function prepareDataSource(array $dataSource)
    {
        if (isset($dataSource['data']['items'])) {
            $fieldName = $this->getData('name');
            foreach ($dataSource['data']['items'] as &$item) {
                if (isset($item['entity_id'])) {
                    $item['wishlist_id'] = $this->getWishlistByCustomerId($item['customer_id']);
                }
            }
        }

        return $dataSource;
    }

    /**
    * @param int $customerId
    */
   public function getWishlistByCustomerId($customerId)
   {
       $wishlistCollection = $this->wishlist->loadByCustomerId($customerId)->getItemCollection();
        if(count($wishlistCollection)) {
            $productName = '';
            foreach ($wishlistCollection as $_item) {
                $productName = $_item->getProduct()->getName();
            }
        } 

       return $productName;
   }

}

VendorProjectviewfrontendui_componentmarketplace_customers_listing.xml

<?xml version="1.0" encoding="UTF-8"?>
<listing xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:module:Magento_Ui:etc/ui_configuration.xsd">
        <column name="wishlist_id" class="VendorProjectUiComponentListingColumnsFrontendWishlistProduct">
            <argument name="data" xsi:type="array">
                <item name="config" xsi:type="array">
                    <item name="component" xsi:type="string">Vendor_Project/js/grid/columns/link</item>
                    <item name="dataType" xsi:type="string">text</item>
                    <item name="label" xsi:type="string" translate="true">wishlist</item>
                    <item name="sortOrder" xsi:type="number">60</item>
                </item>
            </argument>
        </column>
    </columns>
</listing>

VendorProjectUiDataProviderCustomerHistoryDataProvider.php

<?php

namespace VendorProjectUiDataProvider;

use VendorProjectModelResourceModelSaleslistCollectionFactory;
use VendorProjectModelResourceModelSaleslistCollection as OrderColl;
use VendorProjectHelperData as HelperData;
use MagentoReportsModelResourceModelWishlistCollection as Wishlist;
use MagentoWishlistModelResourceModelItemCollection as WishlistCollection;

/**
 * Class CustomerHistoryDataProvider
 */
class CustomerHistoryDataProvider extends MagentoUiDataProviderAbstractDataProvider
{
    /**
     * Collection for getting table name
     *
     * @var VendorProjectModelResourceModelSaleslistCollection
     */
    protected $orderColl;

    /**
     * Saleslist Orders collection
     *
     * @var VendorProjectModelResourceModelSaleslistCollection
     */
    protected $collection;

    /**
     * @var HelperData
     */
    public $helperData;

    /**
     * @var Wishlist
     */
    public $wishlist;

    /**
     * @var WishlistCollection
     */
    public $wishlistCollection;
    
    /**
     * Construct
     *
     * @param string $name
     * @param string $primaryFieldName
     * @param string $requestFieldName
     * @param OrderColl $orderColl
     * @param CollectionFactory $collectionFactory
     * @param HelperData $helperData
     * @param array $meta
     * @param array $data
     */
    public function __construct(
        $name,
        $primaryFieldName,
        $requestFieldName,
        OrderColl $orderColl,
        CollectionFactory $collectionFactory,
        HelperData $helperData,
        array $meta = [],
        array $data = [],
        Wishlist $wishlist,
        WishlistCollection $wishlistCollection
    ) {
        parent::__construct($name, $primaryFieldName, $requestFieldName, $meta, $data);
        $sellerId = $helperData->getCustomerId();

        $customerGridFlat = $orderColl->getTable('customer_grid_flat');
        $wishlistTable = $wishlist->getWishlistTable();
        $wishlistItemTable = $wishlistCollection->getTable('wishlist_item');


        $collectionData = $collectionFactory->create()
        ->addFieldToFilter('seller_id', $sellerId);

        $collectionData->getSelect()
        ->columns('SUM(actual_seller_amount) AS customer_base_total')
        ->columns('count(distinct(order_id)) AS order_count')
        ->group('magebuyer_id');

        $collectionData->getSelect()->join(
            $customerGridFlat.' as cgf',
            'main_table.magebuyer_id = cgf.entity_id',
            [
                'name' => 'name',
                'email' => 'email',
                'billing_telephone' => 'billing_telephone',
                'gender' => 'gender',
                'billing_full' => 'billing_full'
            ]
        )->joinLeft(
            $wishlistTable.' as wt',
            'main_table.magebuyer_id = wt.customer_id',
            [
                'customer_id' => 'customer_id',
                'wishlist_id' => 'wishlist_id'
            ]
        );

        $this->collection = $collectionData;
    }
}