pidgin/pidgin

Finally update the websites to point to the new urls
release-2.x.y
2021-06-21, Gary Kramlich
23c929b96bdf
Finally update the websites to point to the new urls

Testing Done:
Compiled but I grepped the code to make sure there aren't any side effects. `PURPLE_WEBSITE` is only used for opening the site or in plugin info and `PURPLE_DEVEL_WEBSITE` is disabled in the about box and spammed to the logs from `core.c` to report errors.

Reviewed at https://reviews.imfreedom.org/r/766/
prefix=@prefix@
exec_prefix=@exec_prefix@
libdir=@libdir@
includedir=@includedir@
datarootdir=@datarootdir@
datadir=@datadir@
sysconfdir=@sysconfdir@
Name: Pidgin (Gaim compatibility)
Description: Pidgin is a GTK2-based instant messenger application.
Version: @VERSION@
Requires: glib-2.0
Cflags: -I${pc_top_builddir}/${pcfiledir}/libpurple -I${pc_top_builddir}/${pcfiledir}/pidgin
Libs: ${pc_top_builddir}/${pcfiledir}/libpurple/libpurple.la