Revisit structure of deployment docs

[TyDunn]

We need to revisit how we recommend deploying Rasa Open Source, Rasa X, and Rasa Action Server in the docs.

New production recommendation: deploy with new Rasa Open Source helm chart and forward events to Rasa X (using helm chart that is coming soon)

Open questions

• [ ] When do we nudge people to set up Rasa X?
• [ ] How do we structure the documentation with the separate deployments?
• [ ] What do we do with local mode?

@tmbo and I discussed removing the Rasa X installation from here, making the helm charts the default deployment method for the production use case. However, it's not clear where we nudge people to set up Rasa X.

For Rasa X / Enterprise, we also discussed structuring the documentation on deployment similar to gitlab with the two installation methods we'll have there:

• helm charts
• single line install

[tczekajlo]

@RASADSA I think we can close it, right?

[andreoid]

Closing this off, we don't need to track this as an issue. This is going to be a new initiative being led by Melinda.