Update to pixeltable 0.7.8 / gradio 5.49: UDFs to udfs.py, drop token field, pinned deps, python 3.11

Update requirements.txt

Update app.py

Update app.py

Update requirements.txt

Update requirements.txt

Update app.py

Update app.py

Update app.py

Update requirements.txt

Update README.md

Update README.md

Update app.py

Update app.py

Update app.py

Update app.py

Update app.py

Update app.py

Update app.py

Update README.md

Update app.py

Update app.py

Update app.py

Update app.py

Update app.py

Update app.py

Update app.py

Update requirements.txt

Create requirements.txt

Create app.py

initial commit