Bitcoin Block and Transaction Viewers with PDF generation

For blocks: https://websim.ai/c/cCn9Z3WvzWaGw8TUn

For transactions: https://websim.ai/c/Ot6OrpQqLJhfKn6wS

Btw, for sites created with websim.ai, you can download each page and host it yourself. Feel free to do so with my creations there.

I think I later need to fix the cover image for the transaction PDFs since they are always green or blue or something between.