[Feature] Support setting changes during runtime

[schroda]

Info
It is now possible to change settings during runtime

Problem
Everytime the server gets started, these settings will be overwritten by the environment variables

Solution
Do not overwrite the settings with environment variables.

You probably don't want to use them at all, since they just create maintenance work to keep up with the server setting changes.
The server keeps its server config up-to-date by removing old and adding new settings.
This however will not be reflected in the available env variables unless this repo gets updated as well