Fix : added card design to thumbnail

[ramirocruz07]

Fixes

• Fixes added border to thumbnail #360 by @Yourusername

Description

Added shadows to the thumbnail to improve contrast and enhance the card design for better visibility.

Technical details

• Used CSS box-shadow to create a subtle yet effective shadow around the thumbnail.
• Ensured responsiveness across different screen sizes.

Tests

• Verified the shadow effect on multiple screen resolutions.
• Tested the contrast improvement in both light and dark mode (if applicable).

Screenshots

AFTER

BEFORE

Checklist

• My pull request has a descriptive title.
• My pull request targets the default branch (main or master).
• My commit messages follow best practices.
• My code follows the established code style.
• I added or updated tests for the changes I made (if applicable).
• I added or updated documentation (if applicable).
• I verified that there are no visible errors after my changes.

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Developer Certificate of Origin

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