improve over efect at footer

[shuhaki]

Description

add hover effect in logo in footer

Screenshots

Checklist

• [X] I have checked the existing issues.
• [X] I follow Contributing Guidelines of this project.
• [X] I am a GSSoC'24 contributor.
• [X] I want to work on this issue.

Code of Conduct

• [X] I agree to follow this project's "Code of Conduct".