Modify client-side socket info.

[dmitry-solomadin]

• Add action type when sending an element (create, update, move, scale)
• Remove canvasId on element send, add canvasId to canvasSwitch.
• Add #canvasId to elementId when generating elementId

[dmitry-solomadin]

*Add action type when sending an element (create, update, move, scale)

I've added "create", "move" and "scale" actions.

[dmitry-solomadin]

Done. We decided not to do last two points.