Move the pointer to the centre of node and click it. The next frame applies it and shows the result. node must come
from a frame that has already laid it out.
- ui: the UI to send the click to.
- node: the node to click. Null does nothing.
click :: (ui: *UI_State, node: *Node)Move the pointer to the centre of node and click it. The next frame applies it and shows the result. node must come
from a frame that has already laid it out.