feat: Add chat with web data (#450)

create-app.ts

helpers/index.ts

helpers/python.ts

helpers/types.ts

index.ts

questions.ts

templates/components/loaders/python/file/loader.py

templates/components/loaders/python/web/loader.py

templates/components/vectordbs/python/mongo/generate.py

templates/components/vectordbs/python/none/generate.py

templates/components/vectordbs/python/pg/generate.py