update angular core to version 9

package.json

@@ -24,21 +24,21 @@
   "license": "ISC",
   "devDependencies": {
     "@angular-devkit/schematics": "^9.0.1",
-    "@angular/animations": "^8.2.14",
+    "@angular/animations": "^9.0.0",
     "@angular/cdk": "^8.2.3",
     "@angular/cdk-experimental": "^7.3.7",
-    "@angular/common": "^8.2.14",
-    "@angular/compiler": "^8.2.14",
-    "@angular/compiler-cli": "^8.2.14",
-    "@angular/core": "^8.2.14",
-    "@angular/elements": "^8.2.14",
-    "@angular/forms": "^8.2.14",
+    "@angular/common": "^9.0.0",
+    "@angular/compiler": "^9.0.0",
+    "@angular/compiler-cli": "^9.0.0",
+    "@angular/core": "^9.0.0",
+    "@angular/elements": "^9.0.0",
+    "@angular/forms": "^9.0.0",
     "@angular/http": "^7.2.15",
-    "@angular/language-service": "^8.2.14",
+    "@angular/language-service": "^9.0.0",
     "@angular/material": "^8.2.3",
-    "@angular/platform-browser": "^8.2.14",
-    "@angular/platform-browser-dynamic": "^8.2.14",
-    "@angular/router": "^8.2.14",
+    "@angular/platform-browser": "^9.0.0",
+    "@angular/platform-browser-dynamic": "^9.0.0",
+    "@angular/router": "^9.0.0",
     "@ngrx/effects": "^7.4.0",
     "@ngrx/store": "^7.4.0",
     "@ngtools/webpack": "^6.0.5",
@@ -77,19 +77,19 @@
     "protractor": "^5.4.2",
     "raw-loader": "^0.5.1",
     "reflect-metadata": "^0.1.12",
-    "rxjs": "6.5.1",
+    "rxjs": "6.5.4",
     "sass-loader": "^7.2.0",
     "showdown": "^1.9.1",
     "ts-loader": "^4.3.0",
     "ts-node": "^8.1.0",
-    "typescript": "^3.6.0",
+    "typescript": "^3.7.5",
     "uglifyjs-webpack-plugin": "^1.2.5",
     "webpack": "^4.41.2",
     "webpack-cli": "^3.3.2",
     "webpack-closure-compiler": "^2.1.6",
     "webpack-dev-server": "^3.1.4",
     "webpack-merge": "^4.1.2",
-    "zone.js": "^0.9.1"
+    "zone.js": "^0.10.2"
   },
   "dependencies": {
     "hbp-connectivity-component": "^0.1.0"

src/ui/databrowserModule/databrowser.service.ts

 import { HttpClient } from "@angular/common/http";
-import { Injectable, OnDestroy } from "@angular/core";
-import { ComponentRef } from "@angular/core/src/render3";
+import {ComponentRef, Injectable, OnDestroy} from "@angular/core";
 import { select, Store } from "@ngrx/store";
 import { BehaviorSubject, combineLatest, from, fromEvent, Observable, of, Subscription } from "rxjs";
 import { catchError, debounceTime, distinctUntilChanged, filter, map, shareReplay, switchMap, tap, withLatestFrom } from "rxjs/operators";