fix: jerky hover transition for footer link cards

[Abhijeet2409]

Summary

This PR fixes the slightly jerky hover transition on footer link cards (.footer__links-column).

Cause

The footer link cards apply a hover transform, but the transition property did not include transform. Because of this, the movement occurred instantly instead of smoothly.

Fix

Added transform to the transition property for .footer__links-column.

.footer__links-column {
  transition: background-color 0.3s ease,
              box-shadow 0.3s ease,
              transform 0.3s ease;
}

Result

• Smooth hover transition
• Consistent behavior with .footer__about
• Improved UI polish

Solved.mp4

Note: The actual change in this PR only adds the missing transition and does not modify the existing transform behavior.
The transform values themselves were intentionally not changed to avoid introducing potential visual inconsistencies across different screen sizes.

Fixes #807