re-enable addons table for previews (#4217)

dashboard/src/main/home/cluster-dashboard/preview-environments/v2/setup-app/PreviewAppDataContainer.tsx

@@ -328,7 +328,7 @@ export const PreviewAppDataContainer: React.FC<Props> = ({
           ...(currentProject?.beta_features_enabled
             ? [
                 { label: "Required Apps", value: "required-apps" },
-                // { label: "Add-ons", value: "addons" },
+                { label: "Add-ons", value: "addons" },
               ]
             : []),
         ]}