Always show version for all services and any future ones

[tomsmith8]

Hard to know what version stakgraph is on from swarmUI

[tomsmith8]

1. what is the latest version (is swarm aware of new updates)
2. showing the comparison of what is latest (image vs current)
3. node in the view should light up green if on latest
4. I am aware of newer version, im not on it (not green), option to trigger update (n number of versions behind)