fix(i18n): improve Japanese translation for chart alt text

[shuuji3]

🔗 Linked issue

N/A

🧭 Context

There was a small error in the download chart alt text transtation where there are two "。" (period equivalent in Japanese) in the middle of the alt text.

📚 Description

• Fixed the above issue and improve the alt text translation (used more common terminology in the math)
• Plus, added a new missing translation.

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Project	Deployment	Actions	Updated (UTC)
npmx.dev	Ready	Preview, Comment	Jun 13, 2026 4:02pm

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[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

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📥 Commits

Reviewing files that changed from the base of the PR and between 1c48d0c and 7838bec.

📒 Files selected for processing (1)

• i18n/locales/ja-JP.json

---

📝 Walkthrough

Summary by CodeRabbit

• Localisation
  • Updated Japanese language translations for enhanced clarity in trend analysis descriptions
  • Added version label to Japanese language support

Walkthrough

This pull request updates Japanese localization strings in a single file. It adds a version label to package cards and refines trend chart terminology, replacing strong/weak descriptors with ascending/descending labels whilst adjusting accompanying copy text and formatting.

Changes

Japanese Localization Updates

Layer / File(s)	Summary
Package card version label i18n/locales/ja-JP.json	New version translation key ("バージョン") added under the package.card section.
Trend chart labels and copy revision i18n/locales/ja-JP.json	Trend strength descriptors changed from "強い"/"弱い" (strong/weak) to "上昇"/"下降" (ascending/descending), and analysis and general_description copy adjusted with refined wording and watermark placement.

Possibly related PRs

• npmx-dev/npmx.dev#2745: Both PRs modify i18n/locales/ja-JP.json with overlapping updates to package.card version label and timeline.trends.chart.copy_alt trend/analysis copy.

Suggested reviewers

• graphieros
• ghostdevv

🚥 Pre-merge checks | ✅ 4

✅ Passed checks (4 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title accurately describes the main changes: fixing and improving Japanese translations for chart alt text, which aligns with the summary showing updates to the timeline.trends.chart.copy_alt block.
Description check	✅ Passed	The description is directly related to the changeset, explaining the specific error fixed (duplicate Japanese periods) and improvements made to terminology, matching the actual file changes.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch shuuji3/fix/improve-japanese-translation

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[github-actions]

Lunaria Status Overview

🌕 This pull request will trigger status changes.

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Tracked Files

File	Note
i18n/locales/ja-JP.json	Localization changed, will be marked as complete.

Warnings reference

Icon	Description
🔄️	The source for this localization has been updated since the creation of this pull request, make sure all changes in the source have been applied.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ All tests successful. No failed tests found.

📢 Thoughts on this report? Let us know!

[trueberryless]

Do you think you could also add the other 36 missing translations keys?

• shortcuts.open_stats
• command_palette.package.stats
• noodles.title
• noodles.meta_description
• noodles.latest
• noodles.what_is
• noodles.what_is_body
• noodles.empty
• noodles.load_more
• noodles.dates
• noodles.shipped_in
• noodles.credits
• noodles.learn_more
• noodles.carousel_prev
• noodles.carousel_next
• noodles.carousel_dots
• noodles.carousel_jump
• noodles.lens_label
• noodles.lens_slide
• noodles.lens_slide_position
• noodles.back_to_archive
• noodles.missing.title
• noodles.missing.body
• package.replacement.simple
• package.replacement.documented
• package.stats.main_information
• package.stats.trends
• package.stats.version_distribution
• package.links.stats
• package.trends.embedding.chart
• package.trends.embedding.copy_url
• package.trends.embedding.preview
• package.trends.embedding.tip
• compare.diff_truncated

(package.card.version was already added in this PR)

[shuuji3]

Oh, I tried https://npmx.dev/translation-status for the first time and I thought there is only one missing key, but this page actually reflects the only stable version? 🤔

Anyway, I'm going to translate them all soon today.

[trueberryless]

Oh, I tried https://npmx.dev/translation-status for the first time and I thought there is only one missing key, but this page actually reflects the only stable version? 🤔

Yeah, unfortunately the current state from main doesn't load under https://main.npmx.dev/translation-status, so you have to work with our i18n commands to be sure...

I ran node scripts/compare-translations.ts ja-JP to get the output 👍

[graphieros]

^^