Docker support

[oscarsantillana]

Please note - first time I create a dockerfile.

Need to add credentials in docker compose. Scripts are part of dockerfile so they are not needed in package.json.
I was able to start the webapp in port 8100 but I get errors when uploading files. The same errors appear here https://vault.pash.city so I guess it is not an issue of the docker image.

[Jasmin25]

Good job, beat me by a few hours. I was building on alpine; maybe worth trying to reduce the overall size?

[oscarsantillana]

Thanks! I was looking for better compatibility but perhaps makes sense to switch to alpine at some point.