interactive visualization is based on working dir, not model if model passed

[erohmensing]

If you pass in a model to rasa interactive, the stories that create the visualization do not come from that model. This is due to the fact that the data for the visualization comes from the data path and not from the model itself: https://github.com/RasaHQ/rasa/blob/1.5.3/rasa/cli/interactive.py#L90

To reproduce:

cd rasa/examples/moodbot
rasa train
cd ../formbot
rasa interactive -- model ../moodbot/models/<moodbot model>

the visualization that appears comes from formbot stories, but if you talk to the bot in interactive, it is the moodbot.

[erohmensing]

Not feasible since the stories are not packaged in the model, behavior clarified here: #4834 (comment)