Expand the form preview by default

[christian-konrad]

What should we do?

Expand the form preview by default (on first visit). When users change the toggle state, the state should still be persisted.

Why should we do it?

Make the preview easier to discover.

Hypothesis: without expanded preview, users don't recognize what the preview panel is, and how to toggle it (even using the new toolbar toggle). Since users do not see the value they can get using the preview, they churn immediately opening the editor (see data—30% churn).

• Requires tracking built in Web Modeler: https://github.com/camunda/web-modeler/issues/3145
• After 2 weeks of the preview expanded by default, compare new vs previous churn rate, and decide how to continue

[christian-konrad]

TODO: Discuss with Eric if it should be an experiment

[pinussilvestrus]

I think we should move this issue to https://github.com/camunda/form-playground/issues. This library does not implement the toggle states.

[pinussilvestrus]

Closed in favor of camunda/form-playground#33