chore(build): add tsickle back

Author: nivekcode

package-lock.json

@@ -32,6 +32,7 @@
     "@angular/platform-browser-dynamic": "~10.0.12",
     "@angular/router": "~10.0.12",
     "rxjs": "~6.5.5",
+    "tsickle": "^0.39.1",
     "tslib": "^2.0.0",
     "zone.js": "~0.10.3"
   },