message: center the blogs. Add border radius on the bottom of the cards too.
diff: gap: 1rem;
  grid-template-columns: repeat(auto-fill, 25rem);
  grid-template-rows: auto-fit;
  + justify-content: center;
  }
  .blogPreview {
  - border-radius: 0.75rem 0.75rem 0 0;
  + border-radius: 0.75rem;
  min-width: 20rem;
  max-width: 25rem;
  margin: 1rem;
  