fix(scan): drop node uptime from the live ticker

[satyakwok]

Follow-up to #108. The ticker's uptime stat was uptime_seconds from /sentrix_status, which is the serving node's process uptime since its last restart, not chain/network uptime. No major explorer shows this (Etherscan and Solscan home stats are price/market cap/transactions/gas/block; validator uptime % lives on a validators page). On a restart-heavy testnet it kept reading as wrong. Removed the item and cleaned up the now-unused status prop on LiveTicker and the useChainStatus hook in HomeContent. The other nine ticker stats are unchanged. Verified live: no uptime entry remains.

Testing: typecheck and build pass.

Summary by CodeRabbit

• Bug Fixes
  • Simplified the live ticker display by removing the Node uptime metric.
  • The ticker now focuses on core network details like chain, block, block time, epoch progress, validators, mempool, circulating tokens, and rewards.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Pro Plus

Run ID: 28b1bdc7-0dfb-48af-9889-992fa224fd75

📥 Commits

Reviewing files that changed from the base of the PR and between 4600d0f and b2ad4c5.

📒 Files selected for processing (2)

• apps/scan/app/[locale]/HomeContent.tsx
• apps/scan/components/home/LiveTicker.tsx

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📝 Walkthrough

Walkthrough

HomeContent no longer imports or calls useChainStatus and stops passing status to LiveTicker. LiveTicker no longer accepts status, removes the uptime formatter, and no longer renders the “Node uptime” item.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~5 minutes

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title is concise and accurately reflects the main change: removing node uptime from the live ticker.
Description check	✅ Passed	The description covers the change and testing, but it does not follow the template's sectioned format and lacks a clear Related section.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
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

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• Commit unit tests in branch fix/scan-drop-node-uptime

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