pidgin/pidgin

Fix various small documentation errors

20 months ago, Elliott Sales de Andrade
316c1207f787
Fix various small documentation errors

Fix missing transfer annotations, remove old syntax from gtk-doc, correct an `element-type` annotation, and fix a typo.

Testing Done:
Compiled with docs on, and got fewer warnings. Also functions with added transfer annotations are no longer unavailable to bindings.

Reviewed at https://reviews.imfreedom.org/r/1855/
[Desktop Entry]
Name=Pidgin
GenericName=Internet Messenger
Comment=Chat over IM. Supports Jabber/XMPP, and more
Exec=purple3-url-handler %u
TryExec=purple3-url-handler
Icon=pidgin
StartupNotify=false
Terminal=false
NoDisplay=true
Type=Application
Categories=Network;InstantMessaging;RemoteAccess;ConsoleOnly;
MimeType=x-scheme-handler/gg;x-scheme-handler/irc;x-scheme-handler/sip;x-scheme-handler/xmpp;
@USES_MM_CHAT_SECTION@