increase max-width

static/css/style.less

@@ -1001,7 +1001,7 @@ body {
 
 // A width that is not too wide.
 .responsiveWidth {
-    max-width: 1110px;
+    max-width: 1400px;
     width: 99vw;
     margin-left: auto;
     margin-right: auto;