Worktree information in but-status

[Byron]

Tasks

• Legacy data structures (like StackDetails) provide worktree information
• the CLI exposes worktrees in the status

• Related to worktree: status command #11073
• Related to Git worktrees and bare repositories support #10677
• Prerequisite for the worktree-checkout part of A sketch on how to edit workspaces on a high-level #10986

[vercel]

@Byron is attempting to deploy a commit to the GitButler Team on Vercel.

A member of the Team first needs to authorize it.

[Byron]

This PR is merely an MVP to show how the worktree data that is now provided can be used for some form of visualisation.

It's not the final form, but a basis to play with.