feat: load problems from db

[swarooppatilx]

problems should be fetched from database itself, create a seperate table for problems
also a UI for easily inserting, updating, deleting problems, that should also support bulk actions such as importing json

[github-actions]

Thank you for raising this issue!

We'll review it as soon as possible. We truly appreciate your contributions! ✨

Meanwhile make sure you've visited the README.md, CONTRIBUTING.md, and CODE_OF_CONDUCT.md before creating a PR for this. Also, please do NOT create a PR until this issue has been assigned to you. 😊