🐛 bug: Nginx does not route correctly using the docker image

[Paul2803k]

Description

In this PR we fix the reported issue. We also add the possibility for the user to point to SOARCA backend and to set the listening port of the GUI, for both the non docker and the docker builds.

Implementation

• NGINX was not routing the application correctly because it tries to route the application by using its file system by default. In our case the routing is handled by the BrowserRouter directly in the browser. We then fixed the issue by configuring NGINX to always point to the application entry point for every route so that the application can handle it.
• We also set up NGINX to work as a proxy server by forwarding all the api/foo requests from the app to the SOARCA backend to an IP address set by the user while stripping the api part. When the app is served by Vite we configured the Vite server to do the same.
• When running the application in a container the user can now modify the docker-compose files to set the listening port of the application and the SOARCA backend.