Make FEATURE STATE localizable

Add i18n string for FEATURE STATE, for ease of localization.

data/i18n/en/en.toml

@@ -69,6 +69,9 @@ other = "Were you looking for:"
 [examples_heading]
 other = "Examples"
 
+[feature_state]
+other = "FEATURE STATE:"
+
 [feedback_heading]
 other = "Feedback"
 
@@ -269,4 +272,4 @@ other = "Versions"
 other = "Warning:"
 
 [whatsnext_heading]
-other = "What's next"
+other = "What's next"

layouts/shortcodes/feature-state.html

@@ -6,6 +6,6 @@
 {{ errorf "%q is not a valid feature-state, use one of %q" $state $valid_states }}
 {{ else }}
 <div style="margin-top: 10px; margin-bottom: 10px;">
-<b>FEATURE STATE:</b> <code>Kubernetes {{ $for_k8s_version }} [{{ $state }}]</code>
+  <b>{{ T "feature_state" }}</b> <code>Kubernetes {{ $for_k8s_version }} [{{ $state }}]</code>
 </div>
 {{ end }}