feat: Add hover effects and UI enhancements for buttons, cards, and navbar

[shambhavi0608]

Summary

This PR introduces subtle UI enhancements and hover effects to improve the overall user experience across the Trip Planner website.

Key Changes:

1. Added hover effects to all buttons (Plan Trip, Add to Interested, Search, etc.) for better interactivity.
2. Enhanced card components with hover elevation and shadow effects to make the UI more engaging.
3. Navbar links now have a smooth hover effect with color change and underline.
4. Input fields (search, text, and select) now show focus highlights for better usability.
5. Minor responsive improvements to ensure cards and buttons display correctly on smaller screens.

Notes

• No major structural changes have been made to the "Plan Trip" page.
• All existing functionality remains intact.
• These changes aim to improve user experience and visual feedback without altering the original layout.

Testing

• Verified hover effects on buttons, cards, and navbar links.
• Verified focus effects on search and input fields.
• Checked responsive behavior on desktop and mobile screen sizes.
• Confirmed no console errors appear after applying the enhancements.
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Project	Deployment	Preview	Comments	Updated (UTC)
trip-planner	Ready	Preview	Comment	Sep 30, 2025 1:45pm

[Pratham00007]

@shambhavi0608 resolve conflicts

[Pratham00007]

@shambhavi0608 are you working on that?