Rating Improvements on product page:
1) Now we display ratings filter in descending order which
is common behavior for eCommerce/Appstore sites
2) Stop scrolling to top while removing selected rating filter
3) UI improvements for mobile/tablet view
4) Percentage is rounded up to two decimal points so that
it does not look ugly
task-1850446
closes odoo/odoo#28245
Signed-off-by: Quentin Smetz (qsm) <qsm@odoo.com>