Suggestion: Remove workshop project material contribution confirmation window

When adding materials to a workshop project, you have to drag & drop the material from your Inventory window to the Item Request Window.

Chances that you end up contributing materials by accident are slim because
- only slots with items of the required material are enabled in your Inventory window (usually exactly one slot)
- you have to actively drag the stack to the Item Request window.

Thus, the confirmation window popping up after clicking the Confirmation button in the Item Request window is more a nuisance than a way to prevent materials being contributed to a project unintentionally.
Even if you dragged the right material by accident over to the Item request window you still have the option to undo the drag operation by clicking the Cancel instead the Contribute button. On the other hand clicking those confirmation windows away after clicking the Contribute button can become tiresome fast if you have to contribute three or more stacks of material types to complete a project stage.

The confirmation window may not be so much of an issue for people only contributing a small amount of material to a project at a time but from my experience most crafters who have reached max level do projects or at least project stages in one go, ending up with clicking away a lot of confirmation windows.

Alternatively, the confirmation window could be left in place but when dragging a material stack from the Inventory window to the item Request window, transfer not only one item per drag operation but as many as are required of that material type. That would at least reduce the number of confirmation windows one had to click away.