Refactor/Update Dockerfile

[PeterDaveHello]

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Just a few adjustments to make the Docker image even better :tada:

[PeterDaveHello]

Hi @mrtazz, do you have a minute to take a look? Thanks.

[mrtazz]

change looks good to me. But it seems there is a conflict with the Dockerfile in the default branch

[PeterDaveHello]

Cool, looks like there are multiple conflicts as the code base changed in the past year, I'll resolve them.

[PeterDaveHello]

Well... it's strange that I can't build the image any more, looks like something is broken during the past year...

[PeterDaveHello]

#51 sent to fix the build first, looks like it's a little bit messy there 😅

[PeterDaveHello]

@mrtazz conflicts resolved! Thanks.

[PeterDaveHello]

@mrtazz any chance to take a look? Thanks.

[mrtazz]

Thanks for taking the time to contribute!