Meets  #16342: Refactor WorkPackages::Bulk and WorkPackages::Moves controllers into common service

[``* `#16342` Refactor WorkPackages::Bulk and WorkPackages::Moves controllers into common service``](https://www.openproject.org/work_packages/16342)
Use 2 spaces for indentation in a hash, relative to the start of the line where the left curly brace is.