* Remove flow-typed
* Remove flow types
* Remove the last types
* Bring back taskr dependency
* Revert "Bring back taskr dependency"
This reverts commit 38cb95d7274d63fe63c6ac3c95ca358a28c17895.
* Bring back preset-flow as it’s used for tests
* Revert "Revert "Bring back taskr dependency""
This reverts commit b4c933ef133f4039f544fb10bf31d5c95d3b27a2.
Clears the way a bit for #4943, also makes _document.js less complex, and will allow us to move `__NEXT_DATA__` to a `application/json` script tag.
Also this causes a slightly smaller bundle size 😌