To save translators some work, import existing translations for the
newly added keybinding files. As a result of a gnome-i18n discussion[0],
all additions are marked as fuzzy.

[0] https://mail.gnome.org/archives/gnome-i18n/2012-November/msg00054.html

https://bugzilla.gnome.org/show_bug.cgi?id=687672