Remove manual rerun() - use Streamlit's auto-rerun

Fix: Resolve HF Spaces blank page issue - session state and rerun compatibility

Fix: Add st.rerun() to example buttons to prevent blank page 3

Fix: Add st.rerun() to example buttons to prevent blank page 2

Fix: Add st.rerun() to example buttons to prevent blank page

Initial commit

Duplicate from streamlit/streamlit-template-space