HGKeeper

54627f4294b7

Update the POTFILES for the gtk->gtk3 rename

Testing Done:
ran `ninja gplugin-pot`

Reviewed at https://reviews.imfreedom.org/r/967/

EionRobb <> EionRobb <eion@robbmob.com>

ivanhoe <107501-ivanhoe@users.noreply.gitlab.com> ivanhoe <ivanhoe@fiscari.de>

Richard Laager <rlaager@pidgin.im> <rlaager@wiktel.com>