* Update KSM documentation regarding nodes.by_condition
The current documentation inaccurately implies that the `kubernetes_state.node.by_condition` metric is not available in the Legacy check. This is untrue; it was introduced to the Legacy check as KSM Core was being developed. The doc change here makes this distinction a bit more clear.
* Update content/en/integrations/kubernetes_state_core.md
Co-authored-by: Esther Kim <[email protected]>
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Co-authored-by: Esther Kim <[email protected]>