[Feature Request] Allow configuration of selected apps for existing app groups in routines

[abgmgp]

Selected apps for created app groups under routines cannot be configured again, would be very useful for instances where the user wants to add or remove affected apps in a group without deleting and creating a new app group again

Also if the app list can be enhanced (e.g. additional icon information for each item in the list) would be nice

[PranavPurwar]

Supported in v4.2.0