[sreeragvs123]

Summary

Add a keyboard shortcut (/) to quickly focus the search input field, making the primary action of the app faster to reach.

Related issue

Closes #6

Changes made

• Added a global keydown event listener in js/app.js to listen for the / key.
• Implemented checks to ignore the shortcut when the event target is a form control (input, textarea, select, or contenteditable elements) to prevent interfering with normal typing.
• Added event.preventDefault() and called searchInput.focus() when the shortcut is triggered successfully.

Testing performed

• I ran the site locally and tested the change.
• I checked the browser console for errors.
• I tested on desktop and mobile widths.
• Other (please describe):

Screenshots

(Optional: You can attach a screen recording or note that a keyboard shortcut doesn't require visual screenshot changes)

Contributor checklist

• My change follows the existing code style.
• I have tested my change locally.
• I have not committed unrelated files.
• I have commented my code where non-obvious logic lives.