konsole: fix arrow keys

(partially?) fixes #29951

pkgs/applications/kde/konsole.nix

@@ -1,5 +1,5 @@
 {
-  mkDerivation, lib,
+  mkDerivation, lib, makeWrapper,
   extra-cmake-modules, kdoctools,
   kbookmarks, kcompletion, kconfig, kconfigwidgets, kcoreaddons, kguiaddons,
   ki18n, kiconthemes, kinit, kdelibs4support, kio, knotifications,
@@ -18,6 +18,12 @@ mkDerivation {
     kbookmarks kcompletion kconfig kconfigwidgets kcoreaddons kdelibs4support
     kguiaddons ki18n kiconthemes kinit kio knotifications knotifyconfig kparts kpty
     kservice ktextwidgets kwidgetsaddons kwindowsystem kxmlgui qtscript knewstuff
+    makeWrapper
   ];
+
+  postInstall = ''
+    wrapProgram $out/bin/konsole --prefix XDG_DATA_DIRS ":" $out/share
+  '';
+
   propagatedUserEnvPkgs = [ (lib.getBin kinit) ];
 }