feat: add wallpaper feature with 5 new wallpapers

- Add wallpapers.nix module for wallpaper management
- Update hyprland and rofi configs
- Update m3-ares and m3-kratos user configs
- Update flake inputs

home/m3tam3re/m3-ares.nix

@@ -57,6 +57,7 @@ with lib; {
           rofi.enable = true;
           fonts.enable = true;
           wayland.enable = true;
+          wallpapers = true;
         };
       };
     }

home/m3tam3re/m3-kratos.nix

@@ -56,6 +56,7 @@ with lib; {
           rofi.enable = true;
           fonts.enable = true;
           wayland.enable = true;
+          wallpapers = true;
         };
       };
     }