docs: clarify `DeviceStatsMonitor` logged metrics (#20895)
* DOC: Clarify DeviceStatsMonitor logged metrics (#20807)
* update
* use nested list
* Apply suggestions from code review
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Co-authored-by: Jirka B <j.borovec+github@gmail.com>
Co-authored-by: Jirka Borovec <6035284+Borda@users.noreply.github.com>
Co-authored-by: Nicki Skafte <skaftenicki@gmail.com>