Deprecation warning st.experimental_singleton

[senickel]

I am getting the following warning when starting my streamlit app.

st.experimental_singleton is deprecated. Please use the new command st.cache_resource instead, which has the same behavior. More information [in our docs](https://docs.streamlit.io/library/advanced-features/caching).

I think it stems from this line.

I would guess the decorator should be replaced with st.cache_resource according to the link in the warning.

Thanks for creating this library. It gives a much more pythonic feel when developing multipage streamlit apps 🙌