fix: move KubeletSeparateDiskGC feature notice inside note

Currently the feature-state block appears to be for the entire
"Node-pressure eviction" page, however, it's just for the note block listed
on top of the page. So moving this notice inside the node block.

Author: ahmetb

content/en/docs/concepts/scheduling-eviction/node-pressure-eviction.md

@@ -6,9 +6,9 @@ weight: 100
 
 {{<glossary_definition term_id="node-pressure-eviction" length="short">}}</br>
 
-{{< feature-state feature_gate_name="KubeletSeparateDiskGC" >}}
 
 {{<note>}}
+{{< feature-state feature_gate_name="KubeletSeparateDiskGC" >}}
 The _split image filesystem_ feature, which enables support for the `containerfs`
 filesystem, adds several new eviction signals, thresholds and metrics. To use
 `containerfs`, the Kubernetes release v{{< skew currentVersion >}} requires the