🎨 Palette: Search Keyboard Shortcut & Clear Button

[realgarit]

💡 What: Added a '/' keyboard shortcut to focus search inputs and a "Clear Search" button across the App Catalog and My Packages views.

🎯 Why: This enhancement makes the interface more intuitive for power users who prefer keyboard navigation and provides an immediate way to reset search filters, improving the overall flow of application discovery and management.

♿ Accessibility:

• Added aria-label="Clear search" to the icon-only button.
• Included a visually clear <kbd> shortcut hint.
• Ensured the shortcut only triggers when not already typing in an input.

🛠️ Technical Details:

• Created a reusable useSearchShortcut hook to centralize the event listener and focus logic.
• Verified with Playwright automation and manual inspection.
• Ensured production build and unit tests pass.

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PR created automatically by Jules for task 11252557717573394329 started by @realgarit

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