feat: Add Space key support for row selection in data browser

[sahil-ansari01]

• Implement keyboard shortcut to select/unselect rows using Space key
• Enable navigation and selection using arrow keys and Space
• Improve user efficiency when reviewing and selecting multiple rows

New Pull Request Checklist

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

Issue Description

Implements keyboard navigation and row selection functionality in data browser tables to improve user experience and efficiency.

Closes: #2654

Approach

Added keyboard navigation and selection capabilities to enhance accessibility and user efficiency:

1. Space Key Selection:

   • Press Space to toggle selection of the currently focused row
   • Maintains existing selection state of other rows
   • Visual feedback indicates selected state

2. Arrow Key Navigation:

   • Up/Down arrows to move between rows
   • Maintains focus position when navigating
   • Smooth scrolling to keep focused row visible

3. Implementation Details:

   • Added keyboard event listeners for Space and Arrow keys
   • Updated row focus and selection state management
   • Integrated with existing selection mechanisms
   • Preserved multi-select functionality with Shift+Space

TODOs before merging

• Add unit tests for keyboard navigation handlers
• Add integration tests for selection behavior
• Update documentation to include keyboard shortcuts
• Add keyboard navigation section to user guide

[parse-github-assistant]

Thanks for opening this pull request!