feat: Make sidebar width adjustable

[mtrezza]

Summary

• add global CSS variable for sidebar width
• adjust layout styles to use --sidebar-width
• add resize handle and logic to sidebar
• install dependencies to run tests

Testing

• npm test (fails: Cannot read properties of undefined (reading 'statusCode'))

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https://chatgpt.com/codex/tasks/task_e_686bb3991f68832dbaacc10d547636ca

Summary by CodeRabbit

• New Features

  • Added the ability for users to resize the sidebar by dragging a handle, with the chosen width saved for future sessions.

• Style

  • Updated various interface elements (sidebar, toolbar, footers, content areas) to dynamically adjust their position and size based on the sidebar’s width.
  • Introduced a CSS variable for sidebar width, enabling consistent and flexible layout adjustments throughout the app.

[parse-github-assistant[bot]]

🚀 Thanks for opening this pull request!

[parse-github-assistant[bot]]

The label codex cannot be used here.

[coderabbitai[bot]]

📝 Walkthrough

Walkthrough

The changes introduce a user-resizable sidebar by updating the Sidebar component to support drag-based resizing and synchronizing its width with a CSS custom property (--sidebar-width). Multiple SCSS files are updated to use this variable instead of a fixed 300px value, enabling dynamic layout adjustments across the application. A default value is set in the global stylesheet.

Changes

File(s)	Change Summary
src/components/Sidebar/Sidebar.react.js	Added drag-to-resize functionality for the sidebar, syncing width with a CSS variable and localStorage.
src/components/Sidebar/Sidebar.scss	Updated widths to use --sidebar-width variable; added styles for a draggable resize handle.
src/stylesheets/base.scss	Defined global CSS variable --sidebar-width: 300px in the :root selector.
src/components/FlowFooter/FlowFooter.scss src/components/Toolbar/Toolbar.scss	Replaced fixed left: 300px with left: var(--sidebar-width, 300px) for dynamic positioning.
src/dashboard/Dashboard.scss src/parse-interface-guide/PIG.scss	Changed fixed margin-left: 300px to margin-left: var(--sidebar-width, 300px) for dynamic content offset.
src/dashboard/Data/Browser/Browser.scss src/dashboard/Data/Browser/BrowserFooter.scss src/dashboard/TableView.scss	Replaced fixed sidebar-related values (e.g., left: 300px, width: calc(100% - 300px)) with CSS variable --sidebar-width.

Sequence Diagram(s)

sequenceDiagram
    participant User
    participant Sidebar
    participant CSS
    participant LocalStorage

    User->>Sidebar: Mouse down on resize handle
    Sidebar->>Sidebar: startResize()
    Sidebar->>User: Track mousemove events
    loop While dragging
        User->>Sidebar: Mouse move
        Sidebar->>Sidebar: Update width state (min 200px)
        Sidebar->>CSS: Update --sidebar-width property
    end
    User->>Sidebar: Mouse up
    Sidebar->>LocalStorage: Save new width
    Sidebar->>Sidebar: Remove event listeners

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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 ef2f3d3a9101dec14642d5da20a198382b52292c and bff87470f75a4d8e49ebb8ce02081456af30cd97.

📒 Files selected for processing (1)

• src/components/Sidebar/Sidebar.scss (2 hunks)

🚧 Files skipped from review as they are similar to previous changes (1)

• src/components/Sidebar/Sidebar.scss

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• GitHub Check: Node 22
• GitHub Check: Node 18
• GitHub Check: Node 20
• GitHub Check: Docker linux/amd64
• GitHub Check: Lint

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[parseplatformorg]

:tada: Snyk checks have passed. No issues have been found so far.

:white_check_mark: security/snyk check is complete. No issues have been found. (View Details)

[uffizzi-cloud[bot]]

Uffizzi Ephemeral Environment deployment-64527

:watch: Updated Jul 07, 2025, 13:51 UTC

:cloud: https://app.uffizzi.com/github.com/parse-community/parse-dashboard/pull/2872

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[mtrezza]

Resizing works, but it needs further adjustment for min and max width of sidebar. Leaving this open for someone to pick up.