[FIX] website_sale: fix tag mismatch

Commit [1] introduced a mismatch in tags, `<xpath>` is closed with
`</t>`.

[1]: https://github.com/odoo/odoo/commit/85905934c2ad2507cfc6f74428db61ac97a3bc41



closes odoo/odoo#102856

Signed-off-by: Quentin Smetz (qsm) <qsm@odoo.com>

addons/website_sale/static/src/xml/website_sale_dashboard.xml

@@ -69,7 +69,7 @@
                     </t>
                 </div>
             </div>
-        </t>
+        </xpath>
     </t>
 
     <t t-name="website_sale.products_table">