feat(themes): switch gtk theme

configs/themes.nix

@@ -19,6 +19,7 @@
       ${pkgs.coreutils}/bin/chown ${config.users.users.me.name}:users /var/theme/current_theme
       ${pkgs.xorg.xrdb}/bin/xrdb -merge /var/theme/config/xresources
       ${pkgs.procps}/bin/pkill -HUP xsettingsd
+      ${pkgs.glib}/bin/gsettings set org.gnome.desktop.interface gtk-theme "$(cat /var/theme/config/gtk-theme)" || :
     else
       echo "theme $1 not found"
     fi
@@ -54,6 +55,9 @@ in {
   };
 
   environment.etc = {
+    "themes/light/gtk-theme".text = ''
+      Adwaita
+    '';
     "themes/light/xsettings.conf".text = ''
       Net/ThemeName "Adwaita"
     '';
@@ -61,8 +65,11 @@ in {
       *background: #ffffff
       *foreground: #000000
     '';
+    "themes/dark/gtk-theme".text = ''
+      Dracula
+    '';
     "themes/dark/xsettings.conf".text = ''
-      Net/ThemeName "Adwaita-dark"
+      Net/ThemeName "Dracula"
     '';
     "themes/dark/xresources".text = ''
       *background: #000000