assets.xml

<?xml version="1.0"?>
<!-- Copyright 2019 Le Filament
     License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl). -->

<odoo>

	<template id="cgscop_assets_backend" name="account assets" inherit_id="web.assets_backend">
        <xpath expr="." position="inside">
            <link rel="stylesheet" type="text/css" href="/cgscop_timesheet/static/src/css/style.css"/>
      	</xpath>
    </template>

</odoo>