gajim: Add gnome3.defaultIconTheme to buildInputs

This is for systems that are not using a full desktop environment, so
Gajim can fall back to the default icon theme of Gnome 3.

Among just fixing aesthetics this also fixes a few exceptions that were
triggered by Gajim not finding the icons. One example of this is when
you enter the plugins dialog, the window is empty if the icons can't be
found.

Signed-off-by: aszlig <aszlig@nix.build>
Cc: @abbradar, @Mic92, @7c6f434c

aszlig a0c525bd adb58440

Changed files
+2 -2
pkgs
applications
networking
instant-messengers
gajim
+2 -2
pkgs/applications/networking/instant-messengers/gajim/default.nix
···
{ buildPythonApplication, lib, fetchurl, gettext, wrapGAppsHook
, python, gtk3, gobjectIntrospection
-
, nbxmpp, pyasn1, pygobject3, dbus-python, pillow
+
, nbxmpp, pyasn1, pygobject3, gnome3, dbus-python, pillow
, xvfb_run, dbus
, enableJingle ? true, farstream, gstreamer, gst-plugins-base, gst-libav, gst-plugins-ugly
, enableE2E ? true, pycrypto, python-gnupg
···
'';
buildInputs = [
-
gobjectIntrospection gtk3
+
gobjectIntrospection gtk3 gnome3.defaultIconTheme
] ++ optionals enableJingle [ farstream gstreamer gst-plugins-base gst-libav gst-plugins-ugly ]
++ optional enableSecrets libsecret
++ optional enableSpelling gspell