feat: open-webui playground prototype

[jeffmaury]

What does this PR do?

POC for integration of open-webui as playground.

Known issues:

• model not selected by default
• locale using system need to find a way to enforce en
• theme
• better container management: we should monitor that port is available as it take some time to start

Screenshot / video of UI

2024-10-10.18-14-58.mp4

What issues does this PR fix or reference?

Relates to #1741

How to test this PR?

[Firewall]

Looks awesome!

A couple of questions:

1. When you have the window with the UI inside of the Podman Desktop ui. Maybe I am missing it but would it be useful to have a button to "open in your browser" maybe next to the 🗑️ icon?
2. Could we add a shortcut to allow users to go from the Playground page to the Containers page filtered down to the containers that are running the playground?

[benoitf]

is it plan to have for example an experimental flag to try/enable it ?

because here it looks it is a drop-in replacement

[axel7083]

I think it would be easier to have it open externally instead of trying to iframe it