add index.php in jnews custom enpoint

function jnews_home_url_multilang( $path = '', $scheme = null ) {
    if ( function_exists( 'pll_current_language' ) ) {
        if ( isset( $path[0] ) && '/' !== $path[0] ) {
            $path = '/' . $path;
        }

        $polylang_setting = get_option( 'polylang', array() );
        $default_lang     = $polylang_setting['default_lang'];
        $current_lang     = pll_current_language();

        if ( isset( $polylang_setting['hide_default'] ) && $polylang_setting['hide_default'] ) {
            if ( $default_lang === $current_lang ) {
                return home_url( '/index.php/' . $path, $scheme );
            }
        }

        return home_url( $current_lang . '/index.php/' . $path, $scheme );
    }
    return home_url( '/index.php/' . $path, $scheme );
}