The "comparisons" website snippet uses a list group with the class set on a UL. In consequence, the web editor considers it as a regular list and may try to outdent it, which is not the expected behavior with a list group. This fix ensures that ULs with the `list-group` class cannot be in/outdented. closes odoo/odoo#32709 Signed-off-by: Pierre Paridans <pparidans@users.noreply.github.com>