[SSE mobile] load worksheets tabs on app launch

apps/spreadsheeteditor/mobile/app/controller/Main.js

@@ -284,6 +284,7 @@ define([
 
                 if (type === Asc.c_oAscAsyncActionType.BlockInteraction && id == Asc.c_oAscAsyncAction.Open) {
                     Common.Gateway.internalMessage('documentReady', {});
+                    Common.NotificationCenter.trigger('document:ready');
                     me.onDocumentContentReady();
                 }
 

apps/spreadsheeteditor/mobile/app/controller/Statusbar.js

@@ -88,6 +88,7 @@ define([
             });
 
             // this.bindViewEvents(this.statusbar, this.events);
+            Common.NotificationCenter.on('document:ready', this.onApiSheetsChanged.bind(this));
         },
 
         setApi: function(api) {