Users keep getting confused about the webkit directory selection dialog that has unfortunate wording about "uploading" that I can't change. Hopefully this new dialog that displays before the dialog I can't control will help users understand that nothing is getting uploaded anywhere.
The message can be ignored in the future with a checkbox that sets a cookie.
WorkerPool speeds up processing of plugins by using more cores on separate threads. It terminates and recreates a worker after it finishes a task since web assembly seems to slow down a ton when a worker is reused (maybe memory becomes to large / unfragmented, idk).
I switched to the deprecated input tag with webkitdirectory since it is the only way to load a folder under the program files folder. Drag and drop might be another alternative, but I'd rather have a picker.
