Auto-expand contracts in the Interact panel

[samajammin]

Summary

Expand the deployed contracts by default, so the user can immediately view the functions available.

Current default display

Updated default display

Motivation

Similar to #175, this should improve the UX by making this feature more obvious.

Describe alternatives you've considered

None

Additional context

None

[javier-tarazaga]

Well I am not sure that would really help to make it more obvious and in the case in which there are a few contracts / many functions per contract, will make it really difficult to find your way to the right contract you want to be calling.

@samajammin unless we have a direct feedback saying that people could not find how to interact with the contracts in the first place, I think we should leave it as it for now.