Going on the webpage and clicking on one of the items lets us reflect user input by clicking edit template and then preview

^this generates nothing, I assume one of them is causing an error and so I tested individually getting
^this looks like a javascript frame work
I tried fuzzing it with this and got an error

using chatgpt to search through the docs I get: ```
${ "freemarker.template.utility.Execute"?new()("id") }
which when previewed gets us

which works!
running preview on
${ "freemarker.template.utility.Execute"?new()("rm morale.txt") }
gets us the win!.

overall super simple lab.