Things that need doing before first release

User flow for initial proxy setup
- Setting up password
- Setting up hostname for Caddy's automatic HTTPS
Config UI in frontend?
Polish frontend UI A LOT
Version checks for consistency between client/server
Have 3 runtimes:
- Crystal + Kemal ✅
- Python + Flask [WIP]
- Nodejs + Express
Document
- How to create a runtime
- How to create a funko
- How to setup the proxy
- APIs
Sanitize all inputs
Streaming responses in slow operations like scaling down or building
Make more things configurable / remove hardcoded stuff