Common place for config files

Add config and db files to a default location instead of next to the executable. putting a config next to the executable can still be used if people want.

This also allows installers in the future.

TODO:

• Allow config to be created on different OS (Linux, Windows, macOS)
• Allow config and database files to be removed and reset using CLI.
• Allow both SQLite and Postgres to be used depending on the binary that is used. without having to change the config file.
• Move database files (SQLite) to global folder.