[erp5_only_office] Decrease speed on onlyoffice gadget

Workaround renderjs speed improvement.

bt5/erp5_only_office/SkinTemplateItem/portal_skins/erp5_only_office/onlyoffice.gadget.js.js

@@ -173,6 +173,8 @@ DocsAPI.DocEditor.version = function () {
     .declareMethod('appReady', function () {
       var g = this;
       console.log('appReady');
+      return new RSVP.Queue()
+        .push(function () {
           g.props.handlers.init({
             config: {
               lang: 'en',
@@ -202,6 +204,7 @@ DocsAPI.DocEditor.version = function () {
               }
             }
           });
+        });
     })
     .declareMethod('documentReady', function () {
       console.log();