pos_restaurant_table_management/pos_restaurant_table_management.xml

<?xml version="1.0" encoding="utf-8"?>
<openerp>
    <data>
        <template id="indexs" inherit_id='point_of_sale.index' name="POS Header">
            <xpath expr="//link[@id='pos-stylesheet']" position="after">
                <link rel="stylesheet" href="/pos_restaurant_table_management/static/src/css/pos.css" />
            </xpath>
        </template>
            
        <template id="assets_backends_js" name="pos_restaurant_table_management assests" inherit_id="web.assets_backend">
            <xpath expr="." position="inside">
               <script type="text/javascript" src="/pos_restaurant_table_management/static/src/js/db.js"></script>  
               <script type="text/javascript" src="/pos_restaurant_table_management/static/src/js/main.js"></script>  
               <script type="text/javascript" src="/pos_restaurant_table_management/static/src/js/models.js"></script>
               <script type="text/javascript" src="/pos_restaurant_table_management/static/src/js/widget.js"></script>               
            </xpath>
        </template>
    </data>
</openerp>