fix(ui): hide awkward empty state for weekly downloads for new packages

[wojtekmaj]

Closes #1044

Too new packages now have Weekly downloads hidden:

Well established packages of course still have the section:

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Project	Deployment	Actions	Updated (UTC)
npmx.dev	Ready	Preview, Comment	Feb 5, 2026 11:17pm

2 Skipped Deployments

Project	Deployment	Actions	Updated (UTC)
docs.npmx.dev	Ignored	Preview	Feb 5, 2026 11:17pm
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[codecov]

Codecov Report

❌ Patch coverage is 50.00000% with 7 lines in your changes missing coverage. Please review.
✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
app/components/Package/WeeklyDownloadStats.vue	50.00%	5 Missing and 2 partials ⚠️

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[Copilot]

Pull request overview

This PR fixes the awkward empty state for weekly downloads on new packages by conditionally hiding the entire downloads section when no data is available. The implementation adds loading state tracking and data presence checks to determine when to show or hide the section, following the pattern used by npmjs.com.

Changes:

• Added computed property to check if weekly downloads data exists
• Added loading state to track data fetch progress
• Conditionally render the downloads section based on loading state or data presence
• Guard modal opening and button visibility with data presence checks

[serhalp]

My hunch is it's more confusing to hide this entirely. We might get future bug reports like "the downloads chart is missing". Could we keep just the heading and show "No downloads yet"? 🤔

[wojtekmaj]

My hunch is it's more confusing to hide this entirely. We might get future bug reports like "the downloads chart is missing". Could we keep just the heading and show "No downloads yet"? 🤔

Good idea, I'll do this today