kontact: add missing dependency

pkgs/applications/kde/kontact.nix

···
   qtwebengine,
   kcmutils, kcrash, kdbusaddons, kwindowsystem,
   akonadi, grantleetheme, kdepim-apps-libs, kontactinterface, kpimtextedit,
-  mailcommon,
+  mailcommon, libkdepim
 }:
 
 mkDerivation {
···
     qtwebengine
     kcmutils kcrash kdbusaddons kwindowsystem
     akonadi grantleetheme kdepim-apps-libs kontactinterface kpimtextedit
-    mailcommon
+    mailcommon libkdepim
   ];
 }