Typecoder v2 improvements

[ankushbhardwxj]

Frontend

• Create frontend state store using Mobx State Tree
• Use websockets for realtime position of cursors of multiple users for compete
• Better keystroke captures & better result section UI
• Upgrade NextJS
• Mixpanel Events

Backend

• Create services in Go/Python
  • Postgres ORM (Try Prisma SDK)
• Replace MongoDB with Postgres
• Jenkins CI
• Terraform to setup on AWS
• Setup K8s for services
• Prometheus, Grafana Setup for Observability