Update Feature Toggles status from Alpha to Preview

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: dylanlerch

src/pages/docs/feature-toggles/index.md

@@ -13,7 +13,7 @@ navOrder: 95
 Octopus Feature Toggles support toggling features on or off in real-time, without redeploying, and progressively releasing changes to subsets of your users.
 
 :::div{.hint}
-Octopus Feature Toggles are currently in Alpha, available to a small set of customers.
+Octopus Feature Toggles are currently in Preview, available to a small set of customers.
 
 If you are interested in this feature please register your interest on the [roadmap card](https://roadmap.octopus.com/c/121-feature-toggles) and we'll keep you updated.
 :::