[FIX] web: fix logo colors

Before this commit, most of the logos used in Odoo were using the old
purple color.

This commit updates all these old logos with the latest version that
can be found on the Odoo brand-asset page

https://www.odoo.com/page/brand-assets



task-3328677

closes odoo/odoo#132063

Signed-off-by: Olivier Dony (odo) <odo@odoo.com>