更新前端静态网页获取方式，放弃使用后端获取api

frontend/node_modules/core-js/modules/es.string.trim-left.js

@@ -0,0 +1,10 @@
+'use strict';
+var $ = require('../internals/export');
+var trimStart = require('../internals/string-trim-start');
+
+// `String.prototype.trimLeft` method
+// https://tc39.es/ecma262/#sec-string.prototype.trimleft
+// eslint-disable-next-line es/no-string-prototype-trimleft-trimright -- safe
+$({ target: 'String', proto: true, name: 'trimStart', forced: ''.trimLeft !== trimStart }, {
+  trimLeft: trimStart
+});