next.js

351fdbce - [Turbopack] try to avoid too small chunks size when optimizing for production (#75048)

[Turbopack] try to avoid too small chunks size when optimizing for production (#75048) ### What? Merge small chunks if they are below the min chunk size of 20kb --------- Co-authored-by: Niklas Mischkulnig <4586894+mischnic@users.noreply.github.com>