Let the user decide on branch and worktree names

### Feature summary

Provide option to create net branch and work tree with custom name

### What problem are you trying to solve?

To easily keep track of context on multiple sessions I like to name my worktree related to the work that I am doing on the branch. So if I work on an authentication module I would like to have my worktree named feature-authentication and my branch as well.

When I open the worktree in my editor I now have to remember that the worktree urban-broccoli is on the authentication branch.

### Proposed solution

When you start a session there should be an option to enter a name for your worktree and branch.

### Workflow impact

This feature should be added as an option and should not replace the custom names.

### Installation context

_No response_

### Additional context

_No response_