* Revive scatterplot: re-add scatterplot to Deployments page
Tried to make some UI improvements to address previous problems:
* added a hover bar and tooltip that displays all of the nodes under the bar,
in descending order of successRate (to correspond with their order in the chart)
* the tooltip looked weird in the empty state so I also added the max/min latencies
observed there
Also cleans up the Deployments page a little when there are not any "least healthy deployments".
* Previously, the sidebar tooltip would still render the last
highlighted nodes' information when the dots updated. Fix that
by selecting a datapoint to highlight when the dots update.
* Add overlay tooltip with names of highlighted nodes
* Align the node labels with the node, except in cases of label overlap
Signed-off-by: Risha Mars <mars@buoyant.io>
Risha Mars