Figure out what to do with the /blog/ page

Right now it's just empty: <img width="1280" height="720" alt="Image" src="https://github.com/user-attachments/assets/7ea65085-30aa-449f-ad62-4d101a753af3" /> https://www.jeffgeerling.com/blog/ I think it should be generating a list of all blog posts, I'm not sure why it's not doing that (sometimes in local preview, it does, other times it's empty...). But at least I could have it link back to `/` where the blog actually resides now.