feat(storefront): strf-9174 Product object in quick view on localhost…

… not consistent with prod: (#991)

* feat(storefront): strf-9174 Product object in quick view on localhost not consistent with prod:

-renderer.module - additional check for stencil-config added;
- index - duplicate code removed;

server/index.js

@@ -33,8 +33,6 @@ function buildManifest(srcManifest, options) {
     pluginsByName['./plugins/renderer/renderer.module'].storeUrl = storeUrl;
     pluginsByName['./plugins/renderer/renderer.module'].storeSettingsLocale =
         options.storeSettingsLocale;
-    pluginsByName['./plugins/renderer/renderer.module'].customLayouts =
-        options.dotStencilFile.customLayouts;
     pluginsByName['./plugins/theme-assets/theme-assets.module'].themePath = options.themePath;
 
     resManifest.register.plugins = _.reduce(

server/plugins/renderer/renderer.module.js

@@ -457,7 +457,9 @@ internals.buildReqHeaders = ({
         'stencil-custom-templates': templates,
     };
 
-    if (!request.headers['stencil-config'] && stencilConfig) {
+    const config = request.headers['stencil-config'];
+
+    if ((!config || config === '{}') && stencilConfig) {
         headers['stencil-config'] = JSON.stringify(stencilConfig);
     }
     // eslint-disable-next-line no-param-reassign