左侧目录树优化，及搜索部分样式调整，部分图片路径更改

shuishen

2021-06-11 95c1f10a276a69ce4fdcc72e68a35c796581d143

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//>>built
define(["dojo/dom-class","dojo/hccss","dojo/domReady","dojo/_base/window"],function(b,a,c,d){c(function(){a("highcontrast")&&b.add(d.body(),"dijit_a11y")});return a});