Add PriceChart component tests for mount and series updates

[josephchimebuka]

Scope

• Mock lightweight-charts
• Assert subscribe/unsubscribe and offline badge behavior

Acceptance criteria

• No real canvas dependency failures
• Cleanup on unmount asserted

Files

• src/components/PriceChart.tsx

[Benedict315]

@Benedict315 has applied to work on this issue as part of the Stellar Wave Program's 7th wave.

Hello please assign me to this issue

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[omoh5]

@omoh5 has applied to work on this issue as part of the Stellar Wave Program's 7th wave.

Please can you assign this to me
Thank you

ℹ️ Repo Maintainers: To accept this application, review their application or assign @omoh5 to this issue.

[drips-wave]

Congratulations, @Benedict315! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on July 30, 2026.

🧑‍💻 @Benedict315: Please resolve the issue such that the repo's maintainers have enough time to review your contribution before the due date. You'll earn Points for completing the issue on-time, which will make you eligible for a share of the Stellar Wave Program's reward pool.

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