Introduce more resilient database

[iam-mhaseeb]

I'm suggesting we should introduce a more resilient database as we are using SQLite right now which is not scalable. Maybe we can introduce PostgreSQL or MySQL but the issue with these relational databases is that we would be moving away from easy deployment of the bot.
Another solution is we can introduce a centralized database as well on our end.

P.S: I'm seeing we are moving towards open-source (code only) but infrastructure can't remain open source we would need to make it close source and leave the choice of deployment to the teams if they want to deploy it on their servers, for the teams who want to use our hosted bot we would need to charge them for that, sadly😞 .