[feature] Add support for dark theme

[pandafy]

Blocker: we need to have a bit of recommendation from UX designers before we can start working on this.
For now we're simply leaving this here as a reminder.

Implement dark theme support in OpenWISP with a toggle option to switch between light and dark modes. By default, the theme should follow the system’s appearance settings but allow users to override it manually if desired.

The dark theme implementation can be inspired by the OpenWISP documentation site, which currently supports dark mode.

[praptisharma28]

Working on this one!

[nemesifier]

@praptisharma28 we'll likely have to iterate on this with the UX designers before we can start working on it.
For now we're simply leaving this here as a reminder.

[praptisharma28]

@praptisharma28 we'll likely have to iterate on this with the UX designers before we can start working on it. For now we're simply leaving this here as a reminder.

Ok no problem.

[Unnati-Gupta24]

Hello @nemesifier @pandafy
I’d love to contribute to this feature! If there’s still room for collaboration, I can start by aligning with the existing UX discussions and ensuring the implementation follows OpenWISP’s design guidelines.

Let me know if I can take this on or assist in any way. Looking forward to your thoughts!

Thanks!

[nemesifier]

@Unnati-Gupta24 we'll likely have to iterate on this with the UX designers before we can start working on it.
For now we're simply leaving this here as a reminder.

[Unnati-Gupta24]

@Unnati-Gupta24 we'll likely have to iterate on this with the UX designers before we can start working on it.
For now we're simply leaving this here as a reminder.

Ok thank you