Installing streamlit-mermaid using poetry adds unnecessary dependencies

[cwilson]

Nice plugin, thanks for creating it!

I noticed that poetry add [email protected] will also add dependencies on setuptools and altair. Here's a snippet from my poetry.lock file after installation:

[[package]]
name = "streamlit-mermaid"
version = "0.3.0"
description = ""
optional = false
python-versions = ">=3.9,<4.0"
files = [
    {file = "streamlit_mermaid-0.3.0-py3-none-any.whl", hash = "sha256:1b7bb7d60e672430edb501f120ab157069b0cf9176fa6c44821710c3aa02cc89"},
    {file = "streamlit_mermaid-0.3.0.tar.gz", hash = "sha256:f4247fc4c063b7c406f3546c843572b0d7a89ddabfd04dface4a8abb70ba9b19"},
]

[package.dependencies]
altair = "<5"
setuptools = ">=75.6.0,<76.0.0"
streamlit = ">=1.0.0,<2.0.0"

altair and setuptools don't appear to be required unless you're building and publishing the project. I'd expect the only dependency to be on streamlit.