web/web_keyboard_navigation/views/templates.xml

<?xml version="1.0" encoding="UTF-8"?>
<odoo>
    <data>

        <template id="assets_backend" name="web_keyboard_navigation assets" inherit_id="web.assets_backend">
            <xpath expr="." position="inside">
                <script
                    type="text/javascript"
                    src="/web_keyboard_navigation/static/src/js/abstract_web_client.js"/>
                <script
                    type="text/javascript"
                    src="/web_keyboard_navigation/static/src/js/browser_detection.js"/>
                <script
                    type="text/javascript"
                    src="/web_keyboard_navigation/static/src/js/web_keyboard_navigation.js"/>
                <link
                    rel="stylesheet"
                    href="/web_keyboard_navigation/static/src/css/web_keyboard_navigation.css"/>
            </xpath>
        </template>

    </data>
</odoo>