'Rows by unit' and 'Rows by host' use VictoriaLogs LogsQL, not PromQL,
so the sort_desc() fix from the PromQL panels doesn't port directly.
Verified live against the real store (swarm-logs query) that
'| sort by (rows) desc' after 'stats by (...)' orders correctly on our
VictoriaLogs version -- the VictoriaMetrics/VictoriaLogs#258 sort-order
bug doesn't reproduce here. Append the sort clause to both panel
queries.
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