Support Streamlit locally

[buremba]

We can pull all the Streamlit applications the user can access using SHOW STREAMLITS and let the user iterate locally. Then, we can update the Streamlit app on Snowflake. Unfortunately Snowflake doesn't provide any way to get the source code of Streamlits yet. DESC STREAMLIT command returns a URL with prefix snow:// but it doesn't provide a way to get the data from snow scheme yet.

Alternatively we can use internal Snowflake APIs by reverse engineering the Snowsight.