pidgin/pidgin

1692f596a13d
Manually check for xgettext as we need it for NLS support.

See https://github.com/mesonbuild/meson/issues/8436 for the upstream bug this is working around.

Also fixed an issue where the appdata file was causing configuration to fail if nls was turned off.

Testing Done:
Ran locally with `-Dnls=true` and `-Dnls=false`.

Reviewed at https://reviews.imfreedom.org/r/548/
[Desktop Entry]
Name=Pidgin 3
GenericName=Internet Messenger
Comment=Chat over IM. Supports AIM, Google Talk, Jabber/XMPP, and more
Exec=pidgin3 %U
Icon=im.pidgin.Pidgin3
StartupNotify=true
Terminal=false
Type=Application
Categories=Network;InstantMessaging;
MimeType=x-scheme-handler/gg;x-scheme-handler/irc;x-scheme-handler/sip;x-scheme-handler/xmpp;
@USES_MM_CHAT_SECTION@