📝[Docs]: upgrade hover effect of maincard

**What Docs changes are you proposing?**
Provide a clear description of the changes you're proposing for the documentation. Are you suggesting corrections, clarifications, additions, or updates?

i want improving hover effect bcoz , it's give to good interface to user ....
recently

i want upgrade like that

**Describe the solution you'd like**
upgrade hover effect of maincard

**Describe alternatives you've considered**
If you've thought about alternative approaches or solutions, briefly describe them here.

**Additional context**
Add any additional context, examples, or screenshots related to the proposed documentation changes.