feature(style): move qt and gtk settings to their own hm-module

modules/home-manager/styling.nix

@@ -0,0 +1,30 @@
+{ config, pkgs, inputs, ... }:
+
+{
+  # set gtk theme
+  gtk = {
+    enable = true;
+    theme = {
+      name = "Adwaita-dark";
+        package = pkgs.gnome-themes-extra;
+      };
+    gtk3.extraConfig.gtk-application-prefer-dark-theme = 1;
+    gtk4.extraConfig.gtk-application-prefer-dark-theme = 1;
+  };
+
+  # set qt theme
+  qt = {
+    enable = true;
+    platformTheme.name = "qt6";
+    style = {
+      name = "adwaita-dark";
+      package = pkgs.adwaita-qt;
+    };
+  };
+
+  # ensure packages are installed
+  home.packages = with pkgs; [
+    gnome-themes-extra
+    adwaita-qt
+  ]
+}