Make logs more compact

[y-lohse]

The size of the log files in my ~/.cozy-desktop grew up to 2.2 Go in 8 days (after clean install). Since this is quite big, I would suggest to find an alternative representation of the logs instead of plain json (for example adding a gz compression?).

I am using the version 3.13.4 on Linux (Fedora 29).

from @melsophos originally posted here : cozy/cozy-drive#1750

[taratatach]

Hi @melsophos, thank you for reaching out.

This is a known issue that we want to tackle. We just haven't had the bandwidth to it so far. Your suggestion of gzipping the log files is a good one and a short investigation led me to an npm package that offers a gzipped, rotating file logging option.

We'll keep you posted on the evolution on this matter.

Have a nice day,
Erwan