This PR moves the entire project to Typescript. Due to the ~1000 ignores this will lead to a messy codebase for a while, but the churn is worth it – all of those ignore comments are places that were never type-safe previously.
closes#1282
* feat: New onboarding documents
* Images -> blocks
* Add tips
* test: removes assumptions of welcome documents
this actually results in the tests being much more understandable too
* add db flag when document was created from welcome flow