[Feature]: A way to disable plugins

[PJansson]

Is your feature request related to a problem you're trying to solve? Please describe.
I would like a way to disable the use of a plugin when adding a package that has one. For example when using a monorepo with the devbox.json in the root of the repo and entering the devbox shell poetry will complain that it cannot find a pyproject.toml file because the plugin runs the poetry env use... command in the initHook script with the default path set in the env vars.

Describe the solution you'd like
A way to set disabled plugins in the devbox.json and/or some kind of flag to do this when adding package e.g. devbox add poetry --no-plugin.