discord: add nvenc library path

pkgs/applications/networking/instant-messengers/discord/linux.nix

@@ -6,6 +6,7 @@
   desktopName,
   self,
   autoPatchelfHook,
+  addDriverRunpath,
   fetchurl,
   makeDesktopItem,
   lib,
@@ -259,7 +260,7 @@ stdenv.mkDerivation (finalAttrs: {
         ''} \
         ${lib.strings.optionalString enableAutoscroll "--add-flags \"--enable-blink-features=MiddleClickAutoscroll\""} \
         --prefix XDG_DATA_DIRS : "${gtk3}/share/gsettings-schemas/${gtk3.name}/" \
-        --prefix LD_LIBRARY_PATH : ${finalAttrs.libPath}:$out/opt/${binaryName} \
+        --prefix LD_LIBRARY_PATH : ${finalAttrs.libPath}:$out/opt/${binaryName}:${addDriverRunpath.driverLink}/lib \
         ${lib.strings.optionalString disableUpdates "--run ${lib.getExe disableBreakingUpdates}"} \
         --run "${stageModules} $out/opt/${binaryName}/modules" \
         --add-flags ${lib.escapeShellArg commandLineArgs}