Instead of tracking data via refs and reinitializing the graph, combine
graphVersion state with key derived from graph nodeId.

Currently works for folder Public/Shared. Private ones are not working,
API needs to be adjusted.

This is to prevent textarea getting smaller and smaller for long json
keys.

Also, changed codeRef, codeTypeRef to state.

update dom-simple in package set

See merge request !29

yet for move up/down