fix: persist zoom state in line charts

[graphieros]

follow-up to #2688

This fixes the unwanted re-rendering of the zoom component in line charts for downloads when the chart config is dynamically updated.

Test:

• display a downloads chart (modal, or compare page)
• use the zoom
• hover the chart: zoom does not reset

[vercel]

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Project	Deployment	Actions	Updated (UTC)
npmx.dev	Ready	Preview, Comment	May 8, 2026 3:33pm

2 Skipped Deployments

Project	Deployment	Actions	Updated (UTC)
docs.npmx.dev	Ignored	Preview	May 8, 2026 3:33pm
npmx-lunaria	Ignored		May 8, 2026 3:33pm

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📝 Walkthrough

Walkthrough

The TrendsChart.vue component now preserves zoom state across chart updates by enabling keepState: true in the VueUiXy chart's zoom configuration options.

Changes

Zoom State Persistence

Layer / File(s)	Summary
Chart Zoom Configuration app/components/Package/TrendsChart.vue	VueUiXy zoom options updated to add keepState: true alongside existing zoom settings (maxWidth, highlightColor, useResetSlot).

Suggested reviewers

• userquin
• gameroman
• MatteoGabriele

🚥 Pre-merge checks | ✅ 4

✅ Passed checks (4 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title accurately describes the main change: enabling zoom state persistence in line charts through a configuration update.
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.
Description check	✅ Passed	The pull request description clearly explains the purpose of the change: fixing unwanted re-rendering of the zoom component by preserving zoom state.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch tooltip-regression

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[codecov]

Codecov Report

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

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