Write script which dumps computer usage data to a file (spambot feature?)

[holmesworcester]

We need to search for the point where Quiet breaks by overloading it with messages (total) or message volume (messages/second) or users.

The goal here is to let us automate the search for the point when it breaks.

To do that, it may be helpful to have a script that logs system usage data.

Only do what is necessary to complete #384

[Dinek007]

https://github.com/TryQuiet/monorepo/pull/678

[holmesworcester]

This is complete I think!