Automatically start web interface upon container start.

[7677865466]

Very simple edit, but this makes the web interface now automatically start when starting container. Is currently using port 5000 but perhaps we could add an environment variable that provides the port to the container.

[7677865466]

Sort of affected issues: #2003 and #2017

[soxoj]

Thanks for the greag proposal, @7677865466! But with the web mode as default, it won't be possible to run Maigret in the default mode just by specifying a username, while this should be a frequent Docker use case.

Maybe we should make separate Dockerfiles for that? Or are there other options?

[7677865466]

I think separate docker files will work. Could also add a new image on docker or Github container registry that allows for quicker deployment.