feat(nix): set pinentry package for gpg

This commit sets the pinentry package to pinentry-gtk2 for gnupg.

home/features/cli/gnupg.nix

@@ -30,11 +30,8 @@ in
     enable = lib.mkDefault true;
     defaultCacheTtl = 600;
     maxCacheTtl = 7200;
+    pinentry.package = pkgs.pinentry-gtk2;
     enableExtraSocket = true;
     enableSshSupport = true;
-    extraConfig = ''
-      keep-tty
-      keep-display
-    '';
   };
 }