Clipboards added to autolathe (and other folder changes) (#37705)

Clipboards added to autolathe (and other folder changes) (#37705)

* Added plastic clipboards; added plastic clipboards to the PTech machine; added clipboards & plastic clipboards to the autolathe

* Fixed plastic clipboard inhand sprites; added and implemented 'empty' clipboard prototypes

* Cleaned up code for empty clipboards; removed BoxFolderBaseEmpty since now it's redundant

* Extensive folder cleanup

* Bugfixed random folder spawns

* Reduced amount of paper in CrateServiceBureaucracy

* Medical folder sprite rename

* BaseTraitorSocialObjective sprite fix

* Added office paper to bureaucracy crate

* First pass at addressing recent review

* Second pass at addressing recent review

* Fix of weird migration.yml error

* whoops, forgot to undo the rename to folder-white.png in the last few commits

* whoops, didn't commit that last commit properly

* whoops, forgot to undo this reordering