新增lodash库，调整数据使用

frontend/angular-ts/package-lock.json

@@ -6812,8 +6812,7 @@
     "lodash": {
       "version": "4.17.20",
       "resolved": "https://registry.npm.taobao.org/lodash/download/lodash-4.17.20.tgz?cache=0&sync_timestamp=1597336001963&other_urls=https%3A%2F%2Fregistry.npm.taobao.org%2Flodash%2Fdownload%2Flodash-4.17.20.tgz",
-      "integrity": "sha1-tEqbYpe8tpjxxRo1RaKzs2jVnFI=",
-      "dev": true
+      "integrity": "sha1-tEqbYpe8tpjxxRo1RaKzs2jVnFI="
     },
     "lodash.clonedeep": {
       "version": "4.5.0",

frontend/angular-ts/package.json

@@ -20,6 +20,7 @@
     "@angular/platform-browser-dynamic": "~8.2.14",
     "@angular/router": "~8.2.14",
     "html2canvas": "^1.0.0-rc.7",
+    "lodash": "^4.17.20",
     "rxjs": "~6.4.0",
     "tslib": "^1.10.0",
     "zone.js": "~0.9.1"