* theme_bootswatch, theme_default, website_theme_install
This commit makes use of the new 'auto' widget for font selection:
instead of enabling a template which will enable a scss file which sets
a font variable to a specific value... we directly allow to do a scss
custo which sets that value.
The code in charge of resetting font customizations on theme switching
is also moved and refactored here in website (instead of being specific
to each theme).
Part of https://github.com/odoo/odoo/pull/33442
task-1974659
Co-authored-by: qsm-odoo <qsm@odoo.com>
* theme_bootswatch, theme_default
Before this commit, the customization dialog for themes was not
multi-website. That means if a theme was installed on a website, the
customization dialog was enabled for all the websites.
Note: this commit uses the '_post_copy' system of theme installations
for the first time and it had to be adapted a little bit.