Change the word "Seat(s)" to "Membership(s)" for the Group Accounts Add On

my_pmpro_group_accounts_gettext_seat.php

<?php
/**
 * This will change all instances of seat(s) to membership(s) for the Group Accounts Add On
 *
 * You can add this recipe to your site by creating a custom plugin
 * or using the Code Snippets plugin available for free in the WordPress repository.
 * Read this companion article for step-by-step directions on either method.
 * https://www.paidmembershipspro.com/create-a-plugin-for-pmpro-customizations/
 */

function my_pmpro_group_accounts_gettext_seat( $output_text, $input_text, $domain ) {
	if ( 'pmpro-group-accounts' === $domain ) {
		$output_text = str_replace( 'Seat', 'Membership', $output_text );
		$output_text = str_replace( 'seat', 'membership', $output_text );
	}
	return $output_text;
}
add_filter( 'gettext', 'my_pmpro_group_accounts_gettext_seat', 10, 3 );

// Support _n calls.
function my_pmpro_group_accounts_ngettext_seat( $output_text, $single, $plural, $number, $domain ) {
	if ( $number == 1 ) {
		return my_pmpro_group_accounts_gettext_seat( $output_text, $single, $domain );
	} else {
		return my_pmpro_group_accounts_gettext_seat( $output_text, $plural, $domain );
	}
}
add_filter( 'ngettext_pmpro-group-accounts', 'my_pmpro_group_accounts_ngettext_seat', 10, 5 );