Add missing packages in flake.nix (#2547)

flake.nix

@@ -26,6 +26,11 @@
             pkgs.openssl
             pkgs.libiconv
             pkgs.pkg-config
+            pkgs.glib
+            pkgs.gtk3
+            pkgs.libsoup_3
+            pkgs.webkitgtk_4_1
+            pkgs.xdotool
           ] ++ lib.optionals pkgs.stdenv.isDarwin (with pkgs.darwin.apple_sdk.frameworks; [
             IOKit
             Carbon