Quality of Life Feature: Shadow of item inputs and drag-drop filter settings.#80

As discussed in the stream, it would be nice if there was a shadow of required items in the input slots of production buildings.

Continuing from there, it would be a great quality of life feature if from this interface one could drag-drop these shadows to nearby inserters and connectors to immediately set the filters.

I have implemented the proper quick filter UI for inserters in the next update. It doesn’t work quite like this but it’s a step in the right direction.

I may do the shadow thing