Revert Word of the Day Feature Changes

[google-labs-jules]

This change reverts the modifications made to the 'word of the day' feature, as requested. It removes the new wordoftheday_jw.xml file, updates the AppHelper.kt to use the default word array, and cleans up the crowdin.yml and the generate-daily-text.sh script.

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PR created automatically by Jules for task 6288943265181807793 started by @dgrieser

[google-labs-jules]

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