Get categories list with category name in custom WP_List_Table class

Im building a plugin and i made custom wp_list_table class to suit my needs and display items with native wordpress look.

The problem is that i can't get to list categories with categories names.

I use data from database table and list of my categories in database is in comma separated list of categories id's

so the data looks like

136, 8, 10, 11, 110

And when i output that on website i get list just like that comma separated

But i want to display each category name instead of simple id like this so at the end i want to make it display like on wordpress post default list like this

It doesn't need to be clickable i just want to display category names on my custom class.

Any idea how to achieve this?

EDIT:

Here is the whole class that i currently use

class custom_feeds_list_table extends WP_List_Table {
// declare constructor and give some basic params
function __construct() {
    global $status, $page;
    $message = null;
    $type = null;

    parent::__construct(array(
        'singular' = 'custom-feed',
        'plural' = 'custom-feeds',
    ));
}

//List all columns that we want to display in table
function get_columns() {
    $columns = array(
        'cb' = 'input type="checkbox" /', //Render a checkbox instead of text
        'feedname' = __('Feed Name', 'vt-translate'),
        'provider' = __('Selected provider', 'vt-translate'),
        'searchterm' = __('Searchterms', 'vt-translate'),
        'numvideos' = __('Videos to pull', 'vt-translate'),
        'post_category' = __('Categories', 'vt-translate'),
        'feedstatus' = __('Status', 'vt-translate'),
    );
    return $columns;
}

//Select which columns are sortable
function get_sortable_columns() {
    $sortable_columns = array(
        'feedname' = array('feedname', true),
        'provider' = array('provider', false),
        'searchterm' = array('searchterm',false),
        'numvideos' = array('numvideos',false),
        'feedstatus' = array('feedstatus', false),
    );
    return $sortable_columns;
}

// Default column render is required
function column_default($item, $column_name) {
    return $item[$column_name];
}

//Bulk action for delete 
function get_bulk_actions() {
    $actions = array(
        'update' = 'Update',
        'enable' = 'Enable',
        'disable' = 'Disable',
        'delete' = 'Delete'
    );
    return $actions;
}

//Process bulk action in database
function process_bulk_action() {
    global $wpdb;
    $custom_table = $wpdb-prefix . 'custom_feeds';

    if ('enable' === $this-current_action()) {
        $ids = isset($_REQUEST['id']) ? $_REQUEST['id'] : array();
        if (is_array($ids)) $ids = implode(',', $ids);

        $this-type = 'updated';
        $this-message = __('No feed selected to enable.', 'custom-feeds');

        if (!empty($ids)) {
            $wpdb-query("UPDATE $custom_table SET feedstatus = 1 WHERE id IN($ids)");
            $this-type = 'updated';
            $this-message = __('Selected feeds are enabled, your website will be updated with enabled feeds at scheduled time.', 'custom-feeds');
        }
    }
    if ('disable' === $this-current_action()) {
        $ids = isset($_REQUEST['id']) ? $_REQUEST['id'] : array();
        if (is_array($ids)) $ids = implode(',', $ids);

        $this-type = 'updated';
        $this-message = __('No feed selected to disable.', 'custom-feeds');

        if (!empty($ids)) {
            $wpdb-query("UPDATE $custom_table SET feedstatus = 0 WHERE id IN($ids)");
            $this-type = 'updated';
            $this-message = __('Selected feeds are disabled, your website will no longer get updates of disabled feeds.', 'custom-feeds');
        }
    }
    if ('delete' === $this-current_action()) {
        $ids = isset($_REQUEST['id']) ? $_REQUEST['id'] : array();
        if (is_array($ids)) $ids = implode(',', $ids);

        $this-type = 'updated';
        $this-message = __('No feed selected to delete.', 'custom-feeds');

        if (!empty($ids)) {
            $wpdb-query("DELETE FROM $custom_table WHERE id IN($ids)");
            $this-type = 'updated';
            $this-message = __('Selected feeds are deleted, your website will no longer get updates from deleted feeds. ', 'custom-feeds');
        }
    }
}

//Prepare items to show in list
function prepare_items() {
    global $wpdb;
    $evg_table = $wpdb-prefix . 'custom_feeds';

    $per_page = $this-get_items_per_page('feeds_per_page', 20);
    $current_page = $this-get_pagenum();

    $columns = $this-get_columns();
    $hidden = array();
    $sortable = $this-get_sortable_columns();

    // here we configure table headers, defined in our methods
    $this-_column_headers = $this-get_column_info();

    // process bulk action if any
    $this-process_bulk_action();

    // will be used in pagination settings
    $total_items = $wpdb-get_var("SELECT COUNT(id) FROM $custom_table");

    // prepare query params, as usual current page, order by and order direction
    $paged = isset($_REQUEST['paged']) ? max(0, intval($_REQUEST['paged']) - 1) : 0;
    $orderby = (isset($_REQUEST['orderby'])  in_array($_REQUEST['orderby'], array_keys($this-get_sortable_columns()))) ? $_REQUEST['orderby'] : 'id';
    $order = (isset($_REQUEST['order'])  in_array($_REQUEST['order'], array('asc', 'desc'))) ? $_REQUEST['order'] : 'desc';

    //Define item aray
    $this-items = $wpdb-get_results($wpdb-prepare("SELECT * FROM $custom_table ORDER BY $orderby $order LIMIT %d OFFSET %d", $per_page, $paged), ARRAY_A);

    // configure pagination
    $this-set_pagination_args(array(
        'total_items' = $total_items,
        'per_page' = $per_page,
        'total_pages' = ceil($total_items / $per_page)
    ));
}

//Input checkbox for id
function column_cb($item) {
    return sprintf(
        'input type="checkbox" name="id[]" value="%s" /',
        $item['id']
    );
}

//Display feed name column with buttons
function column_feedname($item) {
    $actions = array(
        'edit' = sprintf('a href="?page=custom-feedaction=editid=%s"%s/a', $item['id'], __('Edit', 'custom-feeds')),
        'delete' = sprintf('a href="?page=%saction=deleteid=%s"%s/a', $_REQUEST['page'], $item['id'], __('Delete', 'custom-feeds')),
    );

    return sprintf('%s %s',
        'a href="?page=custom-feedaction=editid=' . $item['id'] . '"' . $item['feedname'] . '/a',
        $this-row_actions($actions)
    );
}

//Display feed status column
function column_feedstatus($item) {
    return sprintf(
        ($item['feedstatus'] == true) ? 'div style="color:#006505"Active/div' : 'div style="color:#AA0000"Inactive/div'
    );
}

//Display category column 
function column_post_category($item) {
    return sprintf(
        $item['post_category']
    );
}

}

As you can see the category column function is at the end and i only use basic code

        return sprintf(
        $item['post_category']
    );

which will return raw data from the database, and that is only ID's of categories with comma separated numbers

136, 8, 10, 11, 110

I know if i use this in theme somewhere like this

$cats = $item['post_category'];

it will return

$cats = 136, 8, 10, 11, 110

than

$categories = get_categories( array('include' = $cats) );

and in the end

foreach($categories as $single_cat){
   echo $single_cat-cat_name;
}

it will echo the name of every category.

But that's not the case here, this doesn't work in wp_list_table class for some reason so im looking for some other solution. I also looked at wordpress wp_list_table class in included php file but couldn't find anything related to category.