[FIX] web: nested bullet lists

To reproduce
============
on a quotation's description write a description with two or more nested bulletlists
on web it looks good, but when printing the quotation thes nested bulletlists are not
correctly rendered.

Problem
=======
nested bulletlists on report level need style to correct their display

Solution
========
add the style
opw-3196888

closes odoo/odoo#117932

Signed-off-by: Aaron Bohy (aab) <aab@odoo.com>