Create a documentation on Configuration flags for On-Prem deployment

[zdrawku]

Create a public document outlining the available configuration flags for deploying and managing the App Builder on-premise instance. This document should provide examples of key environment variables, such as:

docker run --restart always -p 80:5000 -e AuthSettings__ClientId="1234-4657-00"

The focus is on enabling customizations and environment-specific adjustments.