Ensure httpServerOptions gets applied to ALL the express apps

This is silly. Turns out setting options at a top level app
does not percolate down to sub apps (and vice versa). You
have to apply the options to ALL express apps.

packages/node_modules/@node-red/editor-api/lib/index.js

@@ -64,6 +64,14 @@ function init(settings,_server,storage,runtimeAPI) {
             }
         }
 
+        var defaultServerSettings = {
+            "x-powered-by": false
+        }
+        var serverSettings = Object.assign({},defaultServerSettings,settings.httpServerOptions||{});
+        for (var eOption in serverSettings) {
+            adminApp.set(eOption, serverSettings[eOption]);
+        }
+
         auth.init(settings,storage);
 
         var maxApiRequestSize = settings.apiMaxLength || '5mb';