Feature / Fix?: Follow the system theme

[ctsk]

Summary

The theme preference is now represented by an enum with 3 values:

• light => maps to libadwaita::ColorScheme::ForceLight The app uses the light theme - regardless of system prefs

• dark => maps to libadwaita::ColorScheme::ForceDark The app uses the dark theme - regardless of system prefs

• system => maps to libadwaita::ColorScheme::Default The Apps style follows the system theme preferences

Result

[ctsk]

I set the default to following the system theme.

[Diegovsky]

You should run cargo fmt before comitting to fix those pipeline errors :)

[Diegovsky]

LGTM on the whole. I wonder if @xou816 had a reason to make it the way it currently is.

IMO it looks better to have a "theme" property than a "prefers-dark" for clarity.

[xou816]

thanks for the review Diegovsky :) and thanks for the contribution ctsk! let's rebase and see how the ci goes

[xou816]

looks like it works perfectly, thanks for your patience!! merging