pidgin/pidgin

Refresh all of the ui files

2021-03-22, Gary Kramlich
132c763c26e4
Refresh all of the ui files

* Resaved everything with Glade 3.38 which changes all of the properties from
using `_`'s to using `-`'s.
* Make sure everything has the license information, including the menu files
that Glade doesn't handle directly.
* Make sure that all of our ui files are requiring Gtk 3.22 as that is our
minimum and many of them were set to 3.20 which was making Glade angry.
* Change the margin-left to margin-start in xfer.ui

Glade is doing some weird stuff though that we'll need to watch in the future. Namely the format view isn't showing up as an internal client in `TalkatuEditor` for some reason and Glade removed the property from the Invisible `GtkTextTag`.

Testing Done:
Compiled and ran locally.

Reviewed at https://reviews.imfreedom.org/r/559/
[main]
host = https://www.transifex.com
[pidgin.pidgin_pot-for-development-branch]
file_filter = po/<lang>.po
source_file = po/pidgin.pot
source_lang = en