odoo/documentation#12669

Created by fw-bot
Merged at e0669d7c52ef3a5643a1e15714392e8138a2d9c1

Statuses:

label
odoo-dev:saas-17.4-17.0-website-howto-theming-cvs-424624-fw
head
011c05bfc2efd23e818acfaca49e578ce63f96eb
merged
1 day ago by Carlos Valverde (cvs)
odoo/documentation
17.0 #12577
saas-17.4 #12669
18.0 #12670
saas-18.1 #12671
saas-18.2 #12672
master #12673

[FW][IMP] howto/website: update `theming` page

This PR updates current theming page, by adding updated content.

task-4316619

Forward-Port-Of: #12577