feat: Remember info panel width and count across browser sessions

[mtrezza]

New Pull Request Checklist

• I am not disclosing a vulnerability.
• I am creating this PR in reference to an issue.

Feature

Remember info panel width and count across browser sessions. Currently, this is lost when refreshing the browser page.

Approach

Remember info panel width and count across browser sessions in local storage.

Summary by CodeRabbit

• New Features
  • Data Browser now remembers aggregation panel configuration, including panel width and count, across sessions. Panel layout adjustments are automatically saved when resizing or adding/removing panels.

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[coderabbitai]

Caution

Review failed

The pull request is closed.

📝 Walkthrough

Walkthrough

This PR adds localStorage persistence for aggregation panel width and count state in the DataBrowser component. Initial values are read from localStorage with defaults (300px width, 1 count), and these values are persisted on resize completion, panel addition/removal, and batch calculation completion. Panel width derivations are recalculated when panels change.

Changes

Cohort / File(s)	Change Summary
Aggregation panel state persistence src/dashboard/Data/Browser/DataBrowser.react.js	Added localStorage keys and read/persist logic for panel width and count; read initial values from localStorage (defaults: 300, 1) in constructor; persist to localStorage on resize stop, panel add/remove, and batch calculations; adjust derived panel width calculations when panels are added or removed

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~10 minutes

• Verify localStorage key definitions and default values (300 for width, 1 for count)
• Confirm all user actions that modify panelWidth or panelCount are covered by persistence calls
• Check that parsed values from localStorage are properly validated and fallback correctly
• Review panel width recalculation logic when panels are added/removed to ensure maxWidth constraints are respected

Possibly related PRs

• feat: Persist info panel visibility when navigating across classes in data browser #2908 — Adds localStorage persistence for aggregation panel visibility state in the same DataBrowser component
• fix: Info panel scroll-to-top setting not persistent across dashboard sessions #2938 — Introduces localStorage persistence for UI preference state in DataBrowser component
• feat: Automatically resize info panel sidebar width when adding or removing panels #3025 — Modifies panelWidth calculation logic when panels are added or removed

✨ Finishing touches

• 📝 Generate docstrings

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment

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📜 Recent review details

Configuration used: CodeRabbit UI

Review profile: CHILL

Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between 3f28699 and 522f4a2.

📒 Files selected for processing (1)

• src/dashboard/Data/Browser/DataBrowser.react.js (7 hunks)

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[parseplatformorg]

✅ Snyk checks have passed. No issues have been found so far.

Status	Scanner	Critical	High	Medium	Low	Total (0)
✅	Open Source Security	0	0	0	0	0 issues

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[parseplatformorg]

🎉 This change has been released in version 8.1.0-alpha.10

[parseplatformorg]

🎉 This change has been released in version 8.1.0