vscode: add FHS dependencies for extensions with embedded headless browsers

Adds libraries needed for extensions that require running a standalone headless browser within vscode. For example, plugins that use the Puppeteer library for automation such as Roo Code.

Includes X11, graphics, and audio libraries required for headless browser functionality.

Minimal set of dependencies was determined via trial and error with `nix run github:nix-community/nix-index-database`

pkgs/applications/editors/vscode/generic.nix

@@ -96,6 +96,31 @@ stdenv.mkDerivation (
 
             # mono
             krb5
+
+            # Needed for headless browser-in-vscode based plugins such as
+            # anything based on Puppeteer https://pptr.dev .
+            # e.g. Roo Code
+            glib
+            nspr
+            nss
+            dbus
+            at-spi2-atk
+            cups
+            expat
+            libxkbcommon
+            xorg.libX11
+            xorg.libXcomposite
+            xorg.libXdamage
+            xorg.libxcb
+            xorg.libXext
+            xorg.libXfixes
+            xorg.libXrandr
+            cairo
+            pango
+            alsa-lib
+            libgbm
+            udev
+            libudev0-shim
           ])
           ++ additionalPkgs pkgs;