web/web_listview_invert_selection/static/src/xml/web_listview_invert_selection.xml

<?xml version="1.0" encoding="UTF-8"?>
<templates xml:space="preserve">

    <t t-extend="ListView">
        <t t-jquery="th.o_list_record_selector" t-operation="prepend">
            <div>
                <span class="o_invert_selection" title="Invert Selection"><i class="fa fa-refresh" aria-hidden="true"></i></span>
            </div>
        </t>
    </t>

</templates>