web/web_set_single_page_hidden/views/webclient_templates.xml

<?xml version="1.0" encoding="utf-8" ?>
<odoo>
    <template
        id="assets_backend"
        name="Backend Assets (set single page hidden)"
        inherit_id="web.assets_backend"
    >
        <xpath expr="." position="inside">
            <script
                type="text/javascript"
                src="/web_set_single_page_hidden/static/src/js/pager.js"
            />
            <script
                type="text/javascript"
                src="/web_set_single_page_hidden/static/src/js/relational_fields.js"
            />
        </xpath>
    </template>
</odoo>