allow to send files to chat

src/app/app.component.ts

@@ -77,7 +77,7 @@ export class AppComponent {
         if(this.platform.is('ios')){
           this.screenOrientation.lock('portrait')
         } else {
-          window.screen.orientation.lock('portrait');
+          (window.screen.orientation as any).lock('portrait');
         }
       }
     });