bug: fix padding issues in the homepage promo section

**Issue Description**

There are very inconsistent padding in the homepage promo section. 


<img width="1366" height="768" alt="Image" src="https://github.com/user-attachments/assets/b6d1d0c5-2409-477d-bdec-f91ab821422e" />

<img width="1366" height="768" alt="Image" src="https://github.com/user-attachments/assets/cfde2714-4e99-44c5-90ca-1e071dde0057" />