(ref): removed configstore impl. for simplicity of codebase

Created by: SystemFiles

In order to simplify the codebase and also remove some extra code I would later have to maintain, I have decided it would be best to remove the configstore implementation I had created in favour of using Lowdb for both database and configuration purposes as it suits the use-case well.

I was tempted to use a manual implementation since I am not fully utilizing all of lowdb's benefits, however, I found that using the configstore implementation would mean reworking a large number of functions in the backup and restore logic which I honestly just can't be bothered to do atm...

Closes #32 (closed)