Is your feature request related to a problem? Please describe.
I noticed in #7419 that we still have some article titles that are not being translated.
You can see The Merge page is entirely untranslated
Describe the solution you'd like
Ensure all article titles and descriptions are added to and fetched from JSON files so they can be translated.
Might it make sense to have all articles in their own JSON file? We don't want to duplicate translations and probably don't want to reach into page-specific JSON files for translation strings on other pages.
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