upgrade dep:

css-loader 0.28->3.5
del 4.1->5.1
eslint 5.18->6.8
eslint-config-airbnb 17.1->18.1
eslint-loader 2.1->4.0
file-loader 2.0->6.0
fs.extra 8.0->9.0
gulp 2.0->3.0
gulp-nunjucks 4.0->5.0
json-loader 0.5->Removed
style-loader 0.23->1.1
uglifyjs-webpack-plugin 1.3->2.2
yargs 13.2->15.3
katex 0.10->0.11
react-monaco-editor 0.35->0.36
timeage-react 1.2->3.0
timeago.js 3.0->4.0
uuid 3.3->7.0

ui/build/utils/mapWebpackUrlPrefix.js

@@ -3,7 +3,7 @@ import _ from 'lodash';
 
 export default function mapWebpackUrlPrefix(mapList) {
   const rules = mapList.map((mappingRule) => {
-    const regex = mappingRule.prefix.split('/').map(s => _.escapeRegExp(s)).join('[\\/\\\\]');
+    const regex = mappingRule.prefix.split('/').map((s) => _.escapeRegExp(s)).join('[\\/\\\\]');
     return {
       from: new RegExp(`^${regex}`, mappingRule.flag),
       to: mappingRule.replace,