hide the two side bars by default

web_assets/javascript/webui.js

@@ -148,8 +148,8 @@ function toolboxClick() {
 var menuOpening = false;
 var toolboxOpening = false;
 var shouldAutoClose = true;
-var wantOpenMenu = windowWidth > 768;
-var wantOpenToolbox = windowWidth >= 1024;
+var wantOpenMenu = false;
+var wantOpenToolbox = false;
 
 function adjustSide() {
     if (windowWidth >= 1024) {