* refactor: attaching emoji in tree node is unnecessary
* refactor: pass depth and hasChildren as separate props
* refactor: move tree impl into a separate hook
* refactor: separate out as DocumentExplorer for reuse
* fix: separate search and node
* fix: review comments
* fix: tsc
* Improve types
* More types, fix default permission for viewers added to collection
* fix change of default role for CollectionGroup
* Restore policy
* test
* tests
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
