i18n: translation updates from weblate

Co-authored-by: Aman Alam <aalam@users.noreply.hosted.weblate.org>
Co-authored-by: Hosted Weblate <hosted@weblate.org>
Co-authored-by: Jun Hwi Ku <siguning@gmail.com>
Co-authored-by: gift983 <983649@my.leicestercollege.ac.uk>
Translate-URL: https://hosted.weblate.org/projects/pop-os/cosmic-bg/ko/
Translation: Pop OS/COSMIC Background

Author: 4 people

i18n/ko/cosmic_bg.ftl

@@ -0,0 +1,2 @@
+app-name = COSMIC 배경
+translator-credits = Ashley Wulber