[FIX] website_sale: fix cart popover

The cart popover was broken since the bootstrap changes as data that was
previously set on the jquery element upon creating the popover was not
set anymore.

closes odoo/odoo#98991

Signed-off-by: William Braeckman (wbr) <wbr@odoo.com>

addons/website_sale/static/src/js/website_sale.js

@@ -75,7 +75,9 @@ publicWidget.registry.websiteSaleCartLink = publicWidget.Widget.extend({
             self._popoverRPC = $.get("/shop/cart", {
                 type: 'popover',
             }).then(function (data) {
-                self.$el.data("bs.popover").config.content = data;
+                const popover = Popover.getInstance(self.$el[0]);
+                popover._config.content = data;
+                popover.setContent(popover.getTipElement());
                 self.$el.popover("show");
                 $('.popover').on('mouseleave', function () {
                     self.$el.trigger('mouseleave');