Fix egregious indentation issues

[S3Prototype]

This PR likely doesn't fix all indentation issues in our yaml snippets, but it does clean up the worst of the worst

It also removes pnpm run fmt from package.json because we have no intended formatting logic yet, and I don't want anyone running those commands thinking we endorse whatever they'll do to the repo yet

[S3Prototype]

@sg-writer Ready for another look

[joelhans]

Found a few places where the indentation isn't quite right, or uses tabs instead of spaces. Overall this is a massively important fix, TY!

[S3Prototype]

@joelhans I did a blanket fix of all the examples in this PR using a tool to fix the indentation. I tested them in the web traffic policy editor but may have still had slip-ups.

Since I've made so many changes, I just resolved all your previous comments since I can't tell if they're relevant anymore. Hopefully you can check this out when you get some time, and I'll address any errors you find asap

[joelhans]

I think there's another conversation to have about standardizing how we indent/structure our YAML consistently across the docs, but the most important thing here is that I dropped these onto a cloud endpoint and they are all valid, i.e. they don't break, so this is a huge step in the right direction!