Implement an option to expand the group step to display users inside the group
Description
At the approval level, the expanded view should only be available on demand, with the default view showing a compact version.
Use user context to prevent users without permission from viewing group members through leakage.
When expanded, clearly distinguish between users who have voted and those who are pending.
Accepted criteria
An option to expand the group step to display users is added at the approval level
The default view remains compact, only expanding on demand
The expanded view shows both voted and pending users, clearly distinguished
User context is applied to prevent unauthorized users from viewing group members