Using lambdas now to pass in variable amount of arguments from components. This works right now with a few open windows, but saving and possibly loading will be broken right now. They need the lambda treatment next.
I also split the JSON validation placeholder to library/common_utilities.py.
This is a massive WIP and should not be trusted or used right now. However, major milestones have been crossed. Both message boxes and file dialogs are now properly subprocessed and work on macOS. I think by extension, it may work on runpod environments as well, but that remains to be tested.