Create a simple demo environment

[janhalen]

We should try and make a reusable demo enviroment that can render a static evidence page with metrics.

• Evaluation of built in javascript data source https://docs.evidence.dev/core-concepts/data-sources/javascript/ @0xf1e
  (This runs build time and is natively supported, maybe a better strategic fit for the PoC?)

• Estimates in workhours for a minimal demo

[0xf1e]

At the moment I'm chaining containers as described here: #16

[0xf1e]

Should I be coming to OS2 today so we can finish the demo in time? I feel like I've made a fair amount of progress

[0xf1e]

There's no proper visualization at this point, but things are coming together:

Evidence.pdf

I'll start merging stuff into my main branch now and that should result in a fully functioning (albeit ugly) demo