[WIP] fix(dockerfile): make dockerfile easy to use / edit code / run everywhere

[Aarbel]

No description provided.

[bmblb]

Thanks for a PR. While it contains some good changes, there are some questionable, like locking to a platform and running under root user. I am not ready to thoroughly test these changes, so let's keep this PR here for a time being as it might be helpful to some

[knobel-dk]

@bmblb

There are a few problems and misconceptions here..

Google Chrome is only packaged for amd64 and unavailable for ARM (so the platform is already what you called "locked"). This repo should use Chromium.

After that, the right way to approach this is multiarch images:
https://github.com/AdamTylerLynch/puppeteer-multiarch

Which is already done for Chromium by linuxserver.io, which I believe has enough activity and commitment that they can relied on:
https://hub.docker.com/r/linuxserver/chromium

There are other ways to make x86 Docker images run on other architectures but it will be a mess to support and run slower for the consumers.

[bmblb]

I took some code from this PR - namely platform specification and a listener - and made that a new PR with some other changes. Closing this PR in favor of #15