feat: migrate configuration to database

[oSumAtrIX]

🐞 Issue

Currently, the bot loads some configurations from a config file. This is unpractical at deployment via a docker container.

❗ Solution

Migrate configuration to a database.

❓ Motivation

The migration would come in favor of deployment because the docker container would not require mounting the config file.

⚠ Additional context

A difficulty would be introduced after migration. How would the configuration be updated and where to provide a template configuration schema?