send the basic system metrics in a timely fashion

This should avoid the "negative total memory" problem people see in
their reports after restarting daemons.

A (minor) optimization would be to break apart the things that really really don't change are only collected once, but I'd rather err on the side of easy to use defaults

````
<vvuksan> if someone wants to fix that in the template
<vvuksan> and submit a pull request
<vvuksan> that would be awesome
```