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/role/role-resolver.service.ts

@@ -1,16 +1,17 @@
 import { Injectable } from '@angular/core';
-import { ActivatedRouteSnapshot, Resolve, Router, RouterStateSnapshot } from '@angular/router';
-import { Role } from './role';
+import { ActivatedRouteSnapshot, Resolve } from '@angular/router';
 import { Observable } from 'rxjs/internal/Observable';
+
+import { Role } from './role';
 import { RoleService } from './role.service';
 
 @Injectable({
   providedIn: 'root',
 })
 export class RoleResolver implements Resolve<Role> {
-  constructor(private ser: RoleService, private router: Router) {}
+  constructor(private ser: RoleService) {}
 
-  resolve(route: ActivatedRouteSnapshot, state: RouterStateSnapshot): Observable<Role> {
+  resolve(route: ActivatedRouteSnapshot): Observable<Role> {
     const id = route.paramMap.get('id');
     return this.ser.get(id);
   }