Add Ctrl+K / Cmd+K shortcut to open the Command Palette

[alimaandev]

Summary

desktop/src/components/command/CommandPalette.tsx already handles Escape/ArrowUp/ArrowDown/Enter once open (lines ~46-52), but there is no global keyboard shortcut to OPEN it.

Goal

Add a global keydown listener that opens the command palette on Ctrl+K (Windows/Linux) or Cmd+K (macOS). The listener should live in the component that mounts the palette (e.g. App or LeftSidebar), and should be cleaned up on unmount.

Tasks

• Add a keydown listener for \metaKey || ctrlKey + 'k'\
• Call \e.preventDefault()\ to avoid browser defaults
• Open the palette; guard against double-opening if already open
• Add/extend a Vitest test for the shortcut

Acceptance criteria

• Ctrl+K opens the palette; Escape still closes it
• Listener is removed on unmount (no leaks)
• Existing palette keyboard navigation unchanged

Labels

good first issue, help wanted