* feat(docs), refactor(docs,studio): add regions list to docs
Adds list of supported AWS regions to docs.
Pulls the region information into `shared-data` package to provide common source of truth for dashboard and docs.
* style: format
This produces more complete type information (unions, following type alias refererences that aren't successfully dereferenced at an earlier stage, etc.), in a format that is much easier to query from UI components. Also adds a snapshot test for easier future iteration.
I had a lot of trouble configuring Jest for the snapshot tests (something to do with imports and compile targets), and there are zero other tests in this directory right now, so I just tore out the test setup and replaced it with Vitest. Much faster!
Charis