Remove IBM push notification and jsonstore, added cordova notifications

src/app/app.module.ts

@@ -65,6 +65,8 @@ import { Media } from '@ionic-native/media/ngx';
 import { StreamingMedia } from '@ionic-native/streaming-media/ngx';
 import { PhotoViewer } from '@ionic-native/photo-viewer/ngx';
 
+import { FCM } from '@ionic-native/fcm/ngx';
+
 @NgModule({
   declarations: [AppComponent],
   entryComponents: [],
@@ -111,7 +113,7 @@ import { PhotoViewer } from '@ionic-native/photo-viewer/ngx';
     //File,
     WebView,
     FilePath,
-    //FCM,
+    FCM,
     WebsocketService,
     ChatService,
     ScreenOrientation,