Add table sorting functionality to Pull Requests table

[Copilot]

Implements comprehensive table sorting for the Pull Requests section, bringing it to feature parity with the existing Issues table. Users can now click on any column header to sort pull requests by that field, with visual indicators showing the current sort column and direction.

What's Changed

The Pull Requests table now supports interactive sorting on all relevant columns:

• PR # - Numeric sorting
• Title - Alphabetical sorting
• Status - Alphabetical sorting (Draft, Merged, Open, etc.)
• Author - Alphabetical sorting by username
• Reviewer - Sorts by number of reviewers
• Comments - Numeric sorting
• Linked Issue - Sorts by number of linked issues
• CI - Alphabetical sorting by status

Technical Implementation

• Added React state management for sort column and direction using useState
• Implemented efficient sorting with useMemo to prevent unnecessary re-computations
• Created comprehensive sorting logic that handles different data types:
  • Dates: Converted to timestamps for proper chronological ordering
  • Numbers: Graceful handling of null/undefined values with fallback to 0
  • Arrays: Sort by array length (reviewers, linked issues)
  • Strings: Standard alphabetical sorting
• Replaced static table headers with interactive TableSortLabel components from Material-UI
• Maintained consistent design patterns with the existing Issues table implementation

User Experience

Clicking a column header sorts by that field in ascending order. Clicking the same header again toggles to descending order. The active sort column is visually highlighted with directional arrows indicating sort order, providing clear feedback to users about the current table state.

The sorting behavior matches exactly what users already expect from the Issues table, ensuring a consistent and intuitive experience across the application.


Pull Requests table showing interactive sorting with the Status column active (highlighted with sort indicator)

Fixes the feature request to add sorting capabilities to the PR table similar to the existing issues table functionality.

Original prompt

Add the ability to sort the PRs table by column, similar to the existing issues table

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[ChrisTimperley]

@copilot the image that you linked in the PR doesn't exist. Can you regenerate it and update the PR?

[Copilot]

@copilot the image that you linked in the PR doesn't exist. Can you regenerate it and update the PR?

Here's the updated screenshot showing the Pull Requests table with fully functional sorting capabilities:

The screenshot demonstrates:

• All PR table columns are now sortable (indicated by the arrow icons in headers)
• The Author column is currently active (showing the up arrow indicator)
• PRs are sorted alphabetically by author: alice, bob, carol, dave
• Interactive sorting behavior matches the existing Issues table above it

The sorting functionality works for all relevant columns including PR #, Title, Status, Author, Reviewer, Comments, Linked Issue, and CI status.