changes for the cloud deployment

.env

admins_service/.env

admins_service/requirements.txt

bikes_service/.env

bikes_service/requirements.txt

booking_service/.env

booking_service/main.py

booking_service/requirements.txt

docker-compose.yml

front_end_client/Dockerfile

front_end_client/asset-manifest.json

front_end_client/city_bike.jpeg

front_end_client/electric_bike.jpeg

front_end_client/favicon.jpg

front_end_client/index.html

front_end_client/loading-icon.gif

front_end_client/logo192.png

front_end_client/logo512.png

front_end_client/manifest.json

front_end_client/robots.txt