add package to specific groups

[amirreza-sf80]

hi
enjoying this project🙌

is there support for adding packages to groups?
like
uv add pytest --dev
or
uv add mkdocs --group docs

i think it could be a good addition

[huwilerb]

• 1 that would be very nice

[amirreza-sf80]

seems like you can pass flags when installing
so when the prompt comes to ask for package to install you can pass --dev or similar at the end