Converted note to warning alert

Author: ExtremePro11299

content/en-us/reference/engine/classes/PluginToolbarButton.yaml

@@ -44,9 +44,10 @@ properties:
       occur in the game world (Workspace). For example, a button that opens a
       widget should have this property be true, as showing a widget is visible
       to the user even if the game view isn't visible.
-
-      When the `Class.Plugin` is used with the **Next Gen Studio Preview** beta option enabled, this property
-      will have no effect and will always behave like if it was set to false.
+      <Alert severity="warning">
+        When the `Class.Plugin` is used with the **Next Gen Studio Preview** beta option enabled, this property
+        will have no effect and will always behave like if it was set to false.
+      </Alert>
     code_samples:
     type: bool
     tags: