chore: Translate transifex_input.json in da

94% of minimum 50% translated source file: 'transifex_input.json'
on 'da'.

Sync of partially translated files: 
untranslated content is included with an empty translation 
or source language content depending on file format

translations/frontend-component-header/src/i18n/messages/da.json

@@ -31,6 +31,6 @@
   "header.navigation.skipNavLink": "Spring til hovedindhold.",
   "header.menu.signOut.label": "Log ud",
   "header.user.menu.studio": "Studio Home",
-  "header.user.menu.maintenance": "Maintenance",
+  "header.user.menu.maintenance": "Vedligeholdelse",
   "header.label.courseOutline": "Back to course outline in Studio"
 }