Fix: TrueNAS Core support for pool stats (#3206)

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Co-authored-by: shamoon <4887959+shamoon@users.noreply.github.com>

src/widgets/truenas/widget.js

@@ -25,6 +25,7 @@ const widget = {
           healthy: entry.healthy,
           allocated: entry.allocated,
           free: entry.free,
+          data: entry.topology.data,
         })),
     },
   },