web/web_view_calendar_list/templates/assets.xml

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

    <template
        id="assets_backend"
        name="Backend Assets (used in backend interface)"
        inherit_id="web.assets_backend"
    >
        <xpath expr="." position="inside">
            <script
                type="text/javascript"
                src="/web_view_calendar_list/static/src/js/calendar_list_renderer.js"
            />
            <script
                type="text/javascript"
                src="/web_view_calendar_list/static/src/js/calendar_list_model.js"
            />
            <script
                type="text/javascript"
                src="/web_view_calendar_list/static/src/js/calendar_list_controller.js"
            />
            <script
                type="text/javascript"
                src="/web_view_calendar_list/static/src/js/calendar_list_view.js"
            />
            <link
                rel="stylesheet"
                type="text/scss"
                href="/web_view_calendar_list/static/src/scss/web_calendar_list.scss"
            />
        </xpath>
    </template>
</odoo>