Node urls should include "title" as part of its id

[bryanph]

So instead of something like

https://geistmap.com/app/nodes/f75fc558-b7b1-4a6f-8ad5-d8e0f0220e96/graph?graphType=abstract

it should hint towards the content of the node, so something like

https://geistmap.com/app/nodes/A_technical_guide_to_SEO-2/graph?graphType=abstract

Stackoverflow handles this very well.
This is to prepare for public pages so that the URLs make sense and show what the content behind the link is about.