[TASK]: Preserve chart settings when rerunning a model and select latest output on node drilldown

[pascaleproulx]

Describe the task
Preserve chart settings when rerunning a simulation.

1. On a workflow, add a model and pipe it into simulate probabilistic
2. Run it and chart the I variable
3. Open the model and change the config (e.g. make one of the parameter a distribution)
4. Rerun the simulation
   => output 2 is created but the chart settings are lost which forces the user to reselect the I variable in order to see the new simulation results. The chart settings should be preserved.

Also, when you drilldown on the simulation node and go to the output tab, the dropdown is showing output1 instead of output2. It should show the latest run by default.