There's no trivial method to include predefined data in a totally-offline, never-to-connect-to-server application, and I wonder whether this requirement is a realistic one (what if you discover you need to update/fix data after releasing the app).
Having said that, here's one possible method you can try:
This method will have a data-size limit, enhanced by the fact that JSON is not the leanest format. I cannot specify what the limit is - you'll just have to try.
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