based on Jelmerdejong's flask-app-blueprint

updated the requirements for flask 2 and other

Turso database ready! just modify the env

start the app:

1. make a virtual env python3 -m venv venv
2. activate it . venv/bin/activate
3. install req pip3 install -r requirements.txt
4. modify the .flaskenv
5. migrate the db flask db upgrade
6. seed the admin and sample user flask seed_db
7. run the app flask run or hot reload flask --debug run