Allow Shell versions to decrease in Cloudshell

[anshulsareen94]

Right now we can have only one version of each shell in cloudshell. If we want to revert changes to a shell in prod, there is no way to fall back to a previous shell version. We have to undo/correct the changes and create a new version for the shell which seems very inefficient.

Can you allow version to decrease in cloudshell?
Maybe a new feature which can allow us to choose from different versions.