fix: walker and gtk4

modules/capabilities/theme.nix

@@ -77,9 +77,7 @@ in
           name = repoTheme.kanagawa.gtkThemeName;
           package = pkgs.kanagawa-gtk-theme.overrideAttrs (_: kanagawaOverride);
         };
-        gtk4.theme = {
-          inherit (config.gtk.theme) name package;
-        };
+        gtk4.theme = null;
         iconTheme = {
           name = repoTheme.kanagawa.iconThemeName;
           package = pkgs.kanagawa-icon-theme.overrideAttrs (_: kanagawaOverride);