A simple tweak to exchanging water between containers

[JohnnyJohn]

Currently, certain botanical containers can instantly transfer water via click-dragging from the sprite of one to another. For example, click-dragging the water tank onto a botanical mister will cause it to instantly fill to max, click-dragging a still to a watertank causes the still to fill the watertank, etc. However, sinks do not have this functionality.
Therefore, I suggest adding this functionality to sinks. That's all.