ext_tables.php

<?php
defined('TYPO3_MODE') || die('Access denied.');

call_user_func(
    function()
    {

        if (TYPO3_MODE === 'BE') {

	    $extConf = \TYPO3\CMS\Core\Utility\GeneralUtility::makeInstance(
									    \TYPO3\CMS\Core\Configuration\ExtensionConfiguration::class
									    )->get('ig_slug');

	    if (isset($extConf['disableOwnMenuItem']) && $extConf['disableOwnMenuItem']==1) {
	      \TYPO3\CMS\Core\Utility\ExtensionManagementUtility::insertModuleFunction(
										       'web_info',
										       \Ig\IgSlug\Controller\SlugController::class,
										       null,
										       'LLL:EXT:ig_slug/Resources/Private/Language/locallang_rebuild.xlf:mlang_tabs_tab'
										       );
	      
	    } else {
	      \TYPO3\CMS\Extbase\Utility\ExtensionUtility::registerModule(
									  'Ig.IgSlug',
									  'web', // Make module a submodule of 'web'
									  'rebuild', // Submodule key
									  '', // Position
									  [
									   'Slug' => 'list, update',
                    
									   ],
									  [
									   'access' => 'user,group',
									   'icon'   => 'EXT:ig_slug/Resources/Public/Icons/user_mod_rebuild.svg',
									   'labels' => 'LLL:EXT:ig_slug/Resources/Private/Language/locallang_rebuild.xlf',
									   ]
									  );
	      
	      
	    }
	} 
        \TYPO3\CMS\Core\Utility\ExtensionManagementUtility::addStaticFile('ig_slug', 'Configuration/TypoScript', 'Managing slugs');

    }
);