Avoid rerendering because of ReactFlow props change

[mcharfadi]

Here is a Flamegraph after moving a node

We can see that the functions onEdgeChange, onEdgeUpdate, onEdgeClick, onNodeClick, onNodeDragStop, onSelectionStart, onSelectionEnd, snapGrid are listed to cause a rerender when they should not. By wrapping these functions in a useCallBack we can avoid this issue.

The ReactFlow component should be rerendered (in this case) only if the prop nodes is changed (it is changed after a setNodes)