1. fix rss being in KiB;
2. get rid of --slice, use --unit-name;
3. fix columns strings being cut,
use two calls to ps,
to get full cmd and cgroup;
4. tested manually that it works;
1. add few random scripts;
1.1. systemd_gtk, oom_firefox
are vibe coded initially;
oom_firefox is useful,
but migrated to ps subprocess
manually;
since psutils is very inefficient,
puts too much load on CPU;
