FIX: docker build

[kodaline]

Description

Issue

The pre-built docker image contains only cat/plugins folder instead all the core. This cause the current pre-built image by github action to be incomplete and to fail with error /usr/local/bin/python: No module named cat.main.

Solution

Change COPY command of the Dockerfile to include the whole cat folder and modify the docker-compose.yml accordingly to use the generated image and to not bind mount /core anymore.

Extra

Edit github action to support multi-platform build.

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas

[kodaline]

@nicola-corbellini Hi, here is the pull-request, not sure about the build action, I never tested one.
Please give it a look when you can

[pieroit]

Hi @kodaline, welcome and thanks :)
I'll leave a review

[pieroit]

Thanks and welcome