This plugin is not properly prepared for localization

Hello! I really like this plugin, it’s so simple – it just works fine!

I tried to translate it, but there are little problems with the localization (see yellow warning here: https://translate.wordpress.org/projects/wp-plugins/duplicate-widgets).

Thats why I created a pull request on GitHub to help fixing this problem.
Issue:
https://github.com/aleksandargubecka/Duplicate-Widgets/issues/1
Pull request:
https://github.com/aleksandargubecka/Duplicate-Widgets/pull/2

Kind regards
dionysous

The page I need help with: [log in to see the link]