[openstreetmap/openstreetmap-website] Add light/dark mode preference (Issue #5324)

[Nekzuris]

Apparently this was decided [here](https://github.com/openstreetmap/openstreetmap-website/pull/5337#issuecomment-2504202626) but I don't understand this choice @gravitystorm.
Even for registered users it's bad because they can't set dark on desktop and light on mobile for example.

-- 
Reply to this email directly or view it on GitHub:
https://github.com/openstreetmap/openstreetmap-website/issues/5324#issuecomment-2539359220
You are receiving this because you are subscribed to this thread.

Message ID: <openstreetmap/openstreetmap-website/issues/5324/2539359220 at github.com>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.openstreetmap.org/pipermail/rails-dev/attachments/20241212/4eb1aaad/attachment.htm>