dark mode

[xmo-odoo]

[xmo-odoo]

Bootstrap only supports dark mode starting in 5.3, Odoo 17 used 5.1, which has no dark mode support. So:

• add dark mode by hand using prefers-color-scheme and possibly light-dark and color-scheme

• stop using website.layout, and switch to an other front-end framework with support for dark themes

  https://picocss.com/ could be a nice pick, the only thing we'd need is a link to the backend (and login) as the rest is mostly irrelevant...

  relevant parent templates: website_templates.xml:/template[@id=layout] < portal_templates.xml:/template[@id=frontend_layout] < webclient_templates.xml:/template[@id=web.frontend_layout] < webclient_templates.xml:/template[@id=web.layout]