fix: make "view" button in comments feed an anchor link

[cemreinanc]

Fixes #4585

Summary

The "view" control in the comments feed was a <button> that called window.open on click. Because the underlying element was a <button>, mouse-wheel (middle) click triggered the browser's autoscroll cursor instead of opening a new tab.

This PR changes the control to a real anchor link (via the shared Button component's href prop, which renders as a Next.js Link) with target="_blank", so middle-click and ctrl/cmd-click open a new tab natively.

Test plan

• In the comments feed, left-click on "view" opens the comment in a new tab.
• Mouse-wheel (middle) click on "view" opens the comment in a new tab (no more autoscroll cursor).
• Ctrl/Cmd+Click behaves like a normal link.

Generated with Claude Code

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📥 Commits

Reviewing files that changed from the base of the PR and between 5793e11 and 6773c62.

📒 Files selected for processing (2)

• front_end/src/components/comment_feed/comment_card.tsx
• front_end/src/components/comment_feed/comment_feed_card.tsx

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch claude/issue-4585-mouse-wheel-click-on-view

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[github-actions]

Cleanup: Preview Environment Removed

The preview environment for this PR has been destroyed.

Resource	Status
🌐 Preview App	Deleted
🗄️ PostgreSQL Branch	Deleted
⚡ Redis Database	Deleted
🔧 GitHub Deployments	Removed
📦 Docker Image	Retained (auto-cleanup via GHCR policies)

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Cleanup triggered by PR close at 2026-05-13T10:13:54Z