feat: cli

[faretek1]

Note

right now, the CLI is low-priority because it's feature creep when most of scratchattach is in a lot of need of maintenance.
This issue is an aggregate issue to reduce the bloat of the number of issues I previously made about the CLI, which is currently low priority and distracting

• feat: change description of group feat: change description of group #523
  • allow changing the description of a group in the cli:
    scratch group describe
• feat: Handling of no CLI groups feat: Handling of no CLI groups #524
  • If there are no CLI groups (e.g. if you just installed the CLI and haven't logged in), add a warning message. if you log in, automatically switch to that group, and do not prompt to add the user to current group
• feat: use stored passwords in cli feat: use stored passwords in cli #522
  • use stored passwords to re-login to scratch if the sessid has expired. I'm not sure of the requirements for sessid expiry though
  • consider using sessionstring