Settings widget still shows English text when system is configured to use other locales

[audreytoskin]

Today, I installed NetSpeed from extensions.gnome.org. I opened GNOME Settings > Region & Language, and changed Language from English to German. I logged out of GNOME Shell, and logged back in. Throughout GNOME Shell, all text labels were in German, but the NetSpeed settings menu still used English for all text labels. I also tried this with French, but with the same results --- French used throughout the shell, but not for the NetSpeed settings.

I'm using the latest version of NetSpeed from the extensions website, with GNOME 3.22, on Fedora 25 Workstation x86_64.

Let me know if I can provide any other debugging information to help figure out this issue.

[martinkg]

problem fixed by attached patch.
fix_gettext-domain.patch.txt

[hedayaty]

@martinkg people have sent very similar pull-request.
I also added yours on the schema file.