fix: typo in dashboard.md results in Choices tab not appearing as expected

indentation issue

Author: starpit

plugins/plugin-client-default/notebooks/dashboard.md

@@ -49,7 +49,7 @@ layout:
         --8<-- "$LOGDIR/events/kubernetes.txt"
         ```
 
-        --8<-- "./dashboard-choices.md"
+    --8<-- "./dashboard-choices.md"
 
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