[RFE] Store state server-side to allow multi-browser access, longer history, etc.

### Feature Idea

Currently each browser accessing ComfyUI's frontend has its own picture of the action. In my particular case, I have a server running Comfy and I might access it from more than one computer. However, the current implementation requires that I use the same computer to access ComfyUI to get an accurate picture of what's going on. Comfy does indicate that something else is happening in the background, but you can't actually see the specific state of that workflow to know where it's at.

Additionally, because the server is stateless, restarting it loses the previous queue's view.

### Existing Solutions

This isn't really a node for this. I haven't found an extension that does it, because it's a low-level change to ComfyUI (adding something like SQLite).

### Other

Related: https://github.com/comfyanonymous/ComfyUI/discussions/4185