[Feature] Use existing venv

[cbmurphy87]

If you have a project with a lot of requirements, such as for pre-commit hooks, you should be able to use the existing venv for the main worktree to avoid having to setup and duplicate the entire venv. It should also copy all project files to not lose your configuration, such as sources/excluded directories. Otherwise, this doesn't provide much more than just cloning the whole repo to the new location.

[zielu]

Hi, when I'm done with fixes related to usage with WSL this will next thing on my TODO list, as there are two other tickets around this area.