Better path detection and selection in the UI upon spawning new session

[lily-de]

Description
A clear and concise description of what the bug is.

When you open a new window in the Goose app, it is not in the same directory as the previous window. It goes back to ~/Users/<username>

To Reproduce

1. I'm working in ~/Users/ldelalande/Development/goose/crates
2. I want to start a new session in the same directory so I click cmd+N
3. New window starts up in ~/Users/ldelalande

Expected behavior
When I open a new window, I'd like to not have to re-go through the Finder window again to select the same directory as before.

Alternatively, we open the new window and the path button on the bottom right shows a list a list of recent paths + option to select new path via Finder could be an approach. Or option to pin certain projects paths + new Path via Finder.