feat(homes/rafiq): add stylix options and wallpaper

nix/homes/rafiq/desktop/default.nix

@@ -37,6 +37,14 @@
       };
     in
     mkIf config.graphical {
+      stylix = {
+        image = ./wallpaper.png;
+        targets = {
+          firefox.colorTheme.enable = true;
+          firefox.profileNames = syncedProfiles;
+          waybar.addCss = false;
+        };
+      };
       persistDirs = [
         "docs"
         "repos"

nix/modules/graphical/stylix.nix

@@ -0,0 +1,12 @@
+{ inputs, ... }:
+{
+  # needs to be default because the options get
+  # evaluated even if graphical is set to false
+  flake.modules.nixos.default =
+    { pkgs, ... }:
+    {
+      imports = [ inputs.stylix.nixosModules.stylix ];
+      stylix.enable = true;
+      stylix.base16Scheme = "${pkgs.base16-schemes}/share/themes/gruvbox-dark-hard.yaml";
+    };
+}