Implementing the profile component

In this section, we'll implement the profile component by extending the base component:

1. To begin, open the core/index.ts file and export the profile service using the following syntax:

   export { ProfileService }
       from '../users/services/profile/profile.service';

2. Open the users/components/profile/profile.component.ts file and add the imports as follows:

   import {
     Component,
     ElementRef,
     Injector,
     ViewChild
   } from '@angular/core';
   import {
     ActivatedRoute,
     ParamMap
   } from '@angular/router';
   import { User }
     from '@ngsocial/graphql/types';
   import {
     User
       as UserModel
   } from 'src/app/shared';
   import { Maybe } from 'graphql/jsutils/Maybe';
   import { Subject } from 'rxjs';
   import {
     take,
     takeUntil,
     switchMap...