Updated app.py for Football Player Tracker

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fix: remove streamlit and fastapi deps, clean requirements for Gradio

fix: remove streamlit and fastapi deps, clean requirements for Gradio

Fix: use compatible scipy version for Python 3.10

Fix: add missing streamlit dependency

Fix: use compatible scipy version for Python 3.10

Fix: downgrade gradio version to compatible one

Add Gradio app and requirements

initial commit