Be able to easily manage, switch, and persist a group of active sessions

[kemper]

Please explain the motivation behind the feature request.

When using goose for several tasks at once, it can be hard to manage several windows at once. It can also be difficult to remember what previous sessions are important.

Describe the solution you'd like

For instance, if I have 4 sessions but occasionally open and close shorter lived sessions then my session list is entwined between the longer and shorter sessions. It would be great if there was something like an "IDE mode" where I have X active sessions in a left hand pane, possibly with status indicators to tell me if they are working on something or done. It would also be great be able to close goose and reopen with those same X sessions

Describe alternatives you've considered
NA

Additional context
NA

• I have verified this does not duplicate an existing feature request