Allow to check past/historic states

Would be very useful for debugging purposes to be able to check the state of previous applies for stacks. Since there’s a “State history” tab where all the checkpoints are saved as events, I guess the states are saved. However, the only allowed operation is to Rollback.

This State history feature could be very useful if combined with the “IaC management“ tab, allowing to check the resources in different points of time.

The motivation for this request was a bunch stacks failing because some resources changed, and we would like to investigate how was the state some time ago, to compare to current one.