Update package.json

Author: ksabine

package.json

@@ -37,6 +37,7 @@
     "@angular/platform-browser-dynamic": "^8.2.7",
     "@angular/router": "^8.2.7",
     "core-js": "^2.6.9",
+    "express": "^4.17.1",
     "rxjs": "^6.5.3",
     "zone.js": "^0.10.2"
   },