Prettied, Linted and updated angular.json according to the latest schematic of Angular CLI.

Now all that is needed is to make it ready for strict compiling.
Removed eslint-plugin-prettier as it is not recommended and causes errors for both eslint and prettier

Bumped to v8.0.0

overlord/src/app/user/user-list-resolver.service.ts

@@ -1,7 +1,9 @@
 import { Injectable } from '@angular/core';
-import { ActivatedRouteSnapshot, Resolve, Router, RouterStateSnapshot } from '@angular/router';
-import { User } from '../core/user';
+import { Resolve, Router } from '@angular/router';
 import { Observable } from 'rxjs/internal/Observable';
+
+import { User } from '../core/user';
+
 import { UserService } from './user.service';
 
 @Injectable({
@@ -10,7 +12,7 @@ import { UserService } from './user.service';
 export class UserListResolver implements Resolve<User[]> {
   constructor(private ser: UserService, private router: Router) {}
 
-  resolve(route: ActivatedRouteSnapshot, state: RouterStateSnapshot): Observable<User[]> {
+  resolve(): Observable<User[]> {
     return this.ser.list();
   }
 }